Heico Lock

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Heico-Lock
Heico-Tec
Wedge Lock Washers
Ring Lock Washers
Wedge Lock Nuts
Wheel Nuts
HLK-Washers for Steel Construction
Combi-Washers

Even under extremes of vibration or dynamic loads, the HEICO-LOCK® Wedge Locking System provides maximum reliability.

If the securing system is subject to dynamic stress, movement is only possible between the internal washer surfaces. This results in an increase in the clamping force.

  • Certified system for securing bolts, working at low and high preload levels.
  • Particularly suitable for dynamic loads – including when using lubricants.
  • Can be re-used.
  • Very easy to install and remove (wedge lock washers are supplied as a pre-assembled pair).
  • Also suitable for high-tensile bolts of 8.8, 10.9 and 12.9 and their respective nuts
  • Available in steel or stainless steel with narrow or wide bearing surfaces – other materials are available upon request.
  • Available from M3 – M76 and ¼” – 3” - custom sizes upon request.

Heico-Lock® Steel (narrow)
Heico-Lock® Steel (broad)
Heico-Lock® Stainless Steel A4 (narrow)
Heico-Lock® Stainless Steel A4 (broad)
Heico-Lock® 254 SMO® (narrow)
Heico-Lock® 254 SMO® (broad)
Heico-Lock® Alloy 718 (narrow)
Heico-Lock® Alloy 718 (broad)
M Steel Item No. Internal-Ø [mm] External-Ø [mm] Box Qty [Pair]
3 HLS-3 3,4 7,0 200
3,5 HLS-3,5 3,9 7,6 200
4 HLS-4 4,4 7,6 200
5 HLS-5 5,4 9,0 200
6 HLS-6 6,5 10,8 200
8 HLS-8 8,5 13,5 200
10 HLS-10 10,7 16,6 200
11 HLS-11 11,4 18,5 200
12 HLS-12 13,0 19,5 200
14 HLS-14 15,2 23,0 100
16 HLS-16 17,0 25,4 100
18 HLS-18 19,5 29,0 100
20 HLS-20 21,4 30,7 100
22 HLS-22 23,4 34,5 100
24 HLS-24 25,3 39,0 100
27 HLS-27 28,4 42,0 50
30 HLS-30 31,4 47,0 50
33 HLS-33 34,4 48,5 25
36 HLS-36 37,4 55,0 25
39 HLS-39 40,4 58,5 25
42 HLS-42 43,2 63,0 25
45 HLS-45 46,2 70,0 25
48 HLS-48 49,6 75,0 25
52 HLS-52 53,6 80,0 1
56 HLS-56 59,1 85,0 1
60 HLS-60 63,1 90,0 1
64 HLS-64 67,1 95,0 1
68 HLS-68 71,1 100,0 1
72 HLS-72 75,1 105,0 1
76 HLS-76 79,1 110,0 1
UNC Steel Item No. Internal-Ø [mm] External-Ø [mm] Box Qty [Pair]
1/4" HLS-1/4" 7,2 11,5 200
3/8" HLS-3/8" 10,3 16,6 200
1/2" HLS-1/2" 13,5 19,5 200
3/4" HLS-3/4" 20,0 30,7 100
1" HLS-1" 27,9 39,0 100
M Steel Item No. Internal-Ø [mm] External-Ø [mm] Box Qty [Pair]
3,5 HLB-3,5 3,9 9,0 200
4 HLB-4 4,4 9,0 200
5 HLB-5 5,4 10,8 200
6 HLB-6 6,5 13,5 200
8 HLB-8 8,6 16,6 200
10 HLB-10 10,7 21,0 200
12 HLB-12 13,0 25,4 100
14 HLB-14 15,2 30,7 100
16 HLB-16 17,0 30,7 100
18 HLB-18 19,5 34,5 100
20 HLB-20 21,4 39,0 100
22 HLS-22 23,4 42,0 50
24 HLB-24 25,3 48,5 50
27 HLB-27 28,4 48,5 25
30 HLB-30 31,4 58,4 25
33 HLB-33 34,4 58,5 25
36 HLB-36 37,4 63,0 25
39 HLB-39 40,4 75,5 25
UNC Steel Item No. Internal-Ø [mm] External-Ø [mm] Box Qty [Pair]
1/4" HLB-1/4" 7,2 13,5 200
3/8" HLB-3/8" 10,3 21,0 200
1/2" HLB-1/2" 13,5 25,4/td> 100
3/4" HLB-3/4" 20,0 39,0 100
1" HLB-1" 27,9 48,5 50
M Steel Item No. Internal-Ø [mm] External-Ø [mm] Box Qty [Pair]
3 HLS-3S 3,4 7,0 200
3,5 HLS-3,5S 3,9 7,6 200
4 HLS-4S 4,4 7,6 200
5 HLS-5S 5,4 9,0 200
6 HLS-6S 6,5 10,8 200
8 HLS-8S 8,6 13,5 200
10 HLS-10S 10,7 16,6 200
11 HLS-11S 11,4 18,5 200
12 HLS-12S 13,0 19,5 200
14 HLS-14S 15,2 23,0 100
16 HLS-16S 17,0 25,4 100
18 HLS-18S 19,5 29,0 100
20 HLS-20S 21,4 30,7 100
22 HLS-22S 23,4 34,5 100
24 HLS-24S 25,3 39,0 100
27 HLS-27S 28,4 42,0 50
30 HLS-30S 31,4 47,0 50
33 HLS-33S 34,4 48,5 25
36 HLS-36S 37,4 55,0 25
39 HLS-39S 40,4 58,5 25
42 HLS-42S 43,2 63,0 25
45 HLS-45S 46,2 70,0 25
48 HLS-48S 49,6 75,0 25
52 HLS-52S 53,6 80,0 1
56 HLS-56S 59,1 85,0 1
60 HLS-60S 63,1 90,0 1
64 HLS-64S 67,1 95,0 1
68 HLS-68S 71,1 100,0 1
72 HLS-72S 75,1 105,0 1
76 HLS-76S 79,1 110,0 1
UNC Steel Item No. Internal-Ø [mm] External-Ø [mm] Box Qty [Pair]
1/4" HLS-1/4"S 7,2 11,5 200
3/8" HLS-3/8"S 10,3 16,6 200
1/2" HLS-1/2"S 13,5 19,5 200
3/4" HLS-3/4"S 20,0 30,7 100
1" HLS-1"S 27,9 39,0 100
M Steel Item No. Internal-Ø [mm] External-Ø [mm] Box Qty [Pair]
3,5 HLB-3,5S 3,9 9,0 200
4 HLB-4S 4,4 9,0 200
5 HLB-5S 5,4 10,8 200
6 HLB-6S 6,5 13,5 200
8 HLB-8S 8,6 16,6 200
10 HLB-10S 10,7 21,0 200
12 HLB-12S 13,0 25,4 100
14 HLB-14S 15,2 30,7 100
16 HLB-16S 17,0 30,7 100
18 HLB-18S 19,5 34,5 100
20 HLB-20S 21,4 39,0 100
22 HLB-22S 23,4 42,0 50
24 HLB-24S 25,3 48,5 50
27 HLB-27S 28,4 48,5 25
30 HLB-30S 31,4 58,4 25
33 HLB-33S 34,4 58,5 25
36 HLB-36S 37,4 63,0 25
39 HLB-39S 40,4 75,5 25
UNC Steel Item No. Internal-Ø [mm] External-Ø [mm] Box Qty [Pair]
1/4" HLB-1/4"S 7,2 13,5 200
3/8" HLB-3/8"S 10,3 21,0 200
1/2" HLB-1/2"S 13,5 25,4/td> 100
3/4" HLB-3/4"S 20,0 39,0 100
1" HLB-1"S 27,9 48,5 50
M Steel Item No. Internal-Ø [mm] External-Ø [mm] Box Qty [Pair]
3 HLS-3SMO254 3,4 7,0 200
3,5 HLS-3,5SMO254 3,9 7,6 200
4 HLS-4SMO254 4,4 7,6 200
5 HLS-5SMO254 5,4 9,0 200
6 HLS-6SMO254 6,5 10,8 200
8 HLS-8SMO254 8,6 13,5 200
10 HLS-10SMO254 10,7 16,6 200
11 HLS-11SMO254 11,4 18,5 200
12 HLS-12SMO254 13,0 19,5 200
14 HLS-14SMO254 15,2 23,0 100
16 HLS-16SMO254 17,0 25,4 100
18 HLS-18SMO254 19,5 29,0 100
20 HLS-20SMO254 21,4 30,7 100
22 HLS-22SMO254 23,4 34,5 100
24 HLS-24SMO254 25,3 39,0 100
27 HLS-27SMO254 28,4 42,0 50
30 HLS-30SMO254 31,4 47,0 50
33 HLS-33SMO254 34,4 48,5 25
36 HLS-36SMO254 37,4 55,0 25
UNC Steel Item No. Internal-Ø [mm] External-Ø [mm] Box Qty [Pair]
1/4" HLS-1/4"SMO254 7,2 11,5 200
3/8" HLS-3/8"SMO254 10,3 16,6 200
1/2" HLS-1/2"SMO254 13,5 19,5 200
3/4" HLS-3/4"SMO254 20,0 30,7 100
1" HLS-1"SMO254 27,9 39,0 100
M Steel Item No. Internal-Ø [mm] External-Ø [mm] Box Qty [Pair]
3,5 HLB-3,5SMO254 3,9 9,0 200
4 HLB-4SMO254 4,4 9,0 200
5 HLB-5SMO254 5,4 10,8 200
6 HLB-6SMO254 6,5 13,5 200
8 HLB-8SMO254 8,6 16,6 200
10 HLB-10SMO254 10,7 21,0 200
12 HLB-12SMO254 13,0 25,4 100
14 HLB-14SMO254 15,2 30,7 100
16 HLB-16SMO254 17,0 30,7 100
18 HLB-18SMO254 19,5 34,5 100
20 HLB-20SMO254 21,4 39,0 100
22 HLB-22SMO254 23,4 42,0 50
24 HLB-24SMO254 25,3 48,5 50
27 HLB-27SMO254 28,4 48,5 25
30 HLB-30SMO254 31,4 58,4 25
33 HLB-33SMO254 34,4 58,5 25
36 HLB-36SMO254 37,4 63,0 25
39 HLB-39SMO254 40,4 75,5 25
UNC Steel Item No. Internal-Ø [mm] External-Ø [mm] Box Qty [Pair]
1/4" HLB-1/4"SMO254 7,2 13,5 200
3/8" HLB-3/8"SMO254 10,3 21,0 200
1/2" HLB-1/2"SMO254 13,5 25,4/td> 100
3/4" HLB-3/4"SMO254 20,0 39,0 100
1" HLB-1"SMO254 27,9 48,5 50
M Steel Item No. Internal-Ø [mm] External-Ø [mm] Box Qty [Pair]
3 HLS-3ALL718 3,4 7,0 200
3,5 HLS-3,5ALL718 3,9 7,6 200
4 HLS-4ALL718 4,4 7,6 200
5 HLS-5ALL718 5,4 9,0 200
6 HLS-6ALL718 6,5 10,8 200
8 HLS-8ALL718 8,5 13,5 200
10 HLS-10ALL718 10,7 16,6 200
11 HLS-11ALL718 11,4 18,5 200
12 HLS-12ALL718 13,0 19,5 200
14 HLS-14ALL718 15,2 23,0 100
16 HLS-16ALL718 17,0 25,4 100
18 HLS-18ALL718 19,5 29,0 100
20 HLS-20ALL718 21,4 30,7 100
22 HLS-22ALL718 23,4 34,5 100
24 HLS-24ALL718 25,3 39,0 100
M Steel Item No. Internal-Ø [mm] External-Ø [mm] Box Qty [Pair]
3,5 HLB-3,5ALL718 3,9 9,0 200
4 HLB-4ALL718 4,4 9,0 200
5 HLB-5ALL718 5,4 10,8 200
6 HLB-6ALL718 6,5 13,5 200
8 HLB-8ALL718 8,6 16,6 200
10 HLB-10ALL718 10,7 21,0 200
12 HLB-12ALL718 13,0 25,4 100
14 HLB-14ALL718 15,2 30,7 100
16 HLB-16ALL718 17,0 30,7 100
18 HLB-18ALL718 19,5 34,5 100
20 HLB-20ALL718 21,4 39,0 100
22 HLS-22ALL718 23,4 42,0 50
24 HLB-24ALL718 25,3 48,5 50

HEICO-LOCK® Ring Lock Washers provide high-quality, user-friendly bolt securing for the most demanding of applications and are ideal for repeated use.

DESIGN OF THE RING LOCKING SYSTEM

HEICO-LOCK® Ring Lock Washers are supplied pre-assembled. The ring locking system consists of a polyamide ring (PA) and the already familiar HEICO-LOCK® Wedge Lock Washers.

  • Very easy to install and remove (ring locking system is supplied pre-assembled)
  • Whereas the HEICO-LOCK® Wedge Lock Washers secure the bolted connections reliably,
    the ring holds the two individual washers together in the correct position permanently
  • Particularly suitable for dynamic loads – including when lubricants are used
  • Also suitable for use with high-tensile bolts of 8.8, 10.9 and 12.9 and their respective nuts
  • Available from M4 – M24 - custom sizes upon request

Heico-Lock® Ring Lock Washers
M UNC Steel Item No. Stainless Steel Item No. Internal-Ø [mm] External-Ø [mm] Box Qty [Pair]
M4 #8 HLRB-4 HLRB-4S 4,4 9,0 200
M5 #10 HLRS-5 HLRS-5S 5,4 9,0 200
M5 #10 HLRS-5 HLRS-5S 5,4 10,8 200
M6 - HLRS-6 HLRS-6S 6,5 10,8 200
M6 - HLRS-6 HLRS-6S 6,5 13,5 200
- 1/4“ HLRB-1/4“ HLRB-1/4“S 7,2 13,5 200
M8 5/16“ HLRS-8 HLRS-8S 8,6 13,5 200
M8 5/16“ HLRS-8 HLRS-8S 8,6 16,6 200
M10 - HLRS-10 HLRS-10S 10,7 16,6 200
M10 - HLRS-10 HLRS-10S 10,7 19,5 200
M12 - HLRS-12 HLRS-12S 13,0 19,5 200
M12 - HLRS-12 HLRS-12S 13,0 25,4 100
- 1/2“ HLRS-1/2“ HLRS-1/2“S 13,5 19,5 200
M14 9/16“ HLRS-14 HLRS-14S 15,2 30,7 100
M16 5/8“ HLRS-16 HLRS-16S 17,0 25,4 100
M16 5/8“ HLRS-16 HLRS-16S 17,0 30,7 100
- 3/4“ HLRS-3/4“ HLRS-3/4“S 20,0 30,7 100
- 3/4“ HLRS-3/4“ HLRS-3/4“S 20,0 39,0 100
M20 - HLRS-20 HLRS-20S 21,4 30,7 100
M20 - HLRS-20 HLRS-20S 21,4 39,0 100
- 1“ HLRS-1“ HLRS-1“S 27,9 39,0 100

The HEICO-LOCK® Wedge Lock Nut is a re-usable one piece design that delivers high quality, user friendly bolt security without the need for seperate fasteners.

  • The one piece design eliminates the risk of misuse
  • Minimized risk of operating and production breakdowns caused by faulty bolted connections
  • Easy handling especially in hard to reach locations
  • Fixed permanently in the correct position
  • Reduction of assembly time and effort
  • Reduced complexity of the component due to less individual parts
  • Easy, safe and fast installation even for non-specialist users
  • Can be re-used
  • Available from M6 – M27 in strength class 10
  • Also available with fine thread: M20x1.5 and M22x1.5

Heico-Lock® Wedge Lock Nut
Heico-Lock® Wedge Lock Nut (Fine Thread)
M Steel Item No. External-Ø [mm] Box Qty [Pair]
M6 HLM-6 14,2 100
M8 HLM-8 17,9 100
M10 HLM-10 21,8 50
M12 HLM-12 26,0 50
M14 HLM-14 29,9 30
M16 HLM-16 34,5 25
M18 HLM-18 38,0 20
M20 HLM-20 42,8 10
M22 HLM-22 46,0 10
M24 HLM-24 51,0 5
M27 HLM-27 56,0 5
Fine Thread Steel Item No. External-Ø [mm] Box Qty [Pair]
M20 x 1.5 HLM-20x1.5 42,8 1/10
M22 x 1.5 HLM-22x1.5 46,0 1/10

The HEICO-LOCK® Wheel Nut is the reliable solution for the problem of self-loosening of wheel nuts on both roads and rough terrain.

Design of the Wheel Nut
The HEICO-LOCK® Wheel Nut is supplied pre-assembled. The nut and the HEICO-LOCK® Wedge Lock Washers are combined in a captive and rotary way, ensuring the HEICO-LOCK® Wedge Lock Washers and the nut are fixed permanently in the correct position with the wedge lock washers securing your bolted joint using the proven HEICO-LOCK® principle without loss of quality or function.

  • Significantly reduced risk of accidents caused by loosening of wheel nuts.
  • Easy handling due to pre-assembled combination.
  • Minimized risk of operating and production breakdowns caused by faulty bolted connections.
  • Reduction of assembly time and effort.
  • Easy, safe and fast installation even for non-specialist users.
  • Reusable up to multiple times.
  • Suitable for all common steel disc wheels.
  • Available in M20x1.5, M22x1.5 and 7/8“-11 BSF; other sizes upon request.

Heico-Lock® Wheel Nut
Fine Thread Steel Item No. External-Ø [mm] Box Qty [Piece]
M20 x 1.5 HLM-20x1.5 42,8 1/10
M22 x 1.5 HLM-22x1.5 46,0 1/10

The HEICO-LOCK® HLK-Washers offer high quality anti-vibration security for HV sets according to DIN EN 14399-4 and DIN EN 14399-8.

  • Designed to secure HV sets according to DIN EN 14399-4 and DIN EN 14399-8.
  • Replacing washers according to DIN EN 14399-6.
  • Can be used for bolted connections of cat. A to E according to DIN EN 1993-1-8, a. o. suitable for slip-resistant connections.
  • Certified construction product (certificate of conformity).
  • Approved for use by General Building Supervisory Authority (DIBt) Approval No Z-14.4-702.
  • Approved for railway-specific applications (EBA approval).
  • Very easy to install and remove (HLK-washers are supplied as a pre-assembled pair).
  • The double chamfer also ensures that the HEICO-LOCK® HLK-Washers cannot be applied incorrectly, so avoiding operator error.
  • High corrosion resistance provided by use of a zinc-flake coating.
  • Available for HV sets from M12 up to M36.

Heico-Lock® HLK-Washers
Heico-Lock®HLK-Washers - Torque Guidelines
M Steel Item No. Internal-Ø [mm] External-Ø [mm] Box Qty [Pair]
M12 HLK-12 13,0 24,0 200
M16 HLK-16 17,0 30,0 100
M20 HLK-20 21,0 37,0 100
M22 HLK-22 23,0 39,0 50
M24 HLK-24 25,0 44,0 50
M27 HLK-27 28,0 50,0 25
M30 HLK-30 31,0 56,0 25
M36 HLK-36 37,0 66,0 25
M Steel Item No. Reduced standard preload force Fp,C,HLK [kN] Modified torque method Tightening torque MA, HLK [Nm] Modified combined method Preliminary tightening torque 1) MA, MKV, HLK [Nm]
M12 HLK-12 45 150 100
M16 HLK-16 80 330 210
M20 HLK-20 120 560 365
M22 HLK-22 145 730 475
M24 HLK-24 165 880 575
M27 HLK-27 200 1160 755
M30 HLK-30 252 1580 1030
M36 HLK-36 367 2530 1650
1) DIN EN 1993-1-8/NA, Table A.A.3 applies to the required further rotation angles ϑMKV

The efficient combined securing system for highly loaded bolted connections

HEICO-LOCK® Combi-Washers enable quick and easy assembly, especially in difficult installation situations. Combine the simple to use HEICO-LOCK® Combi-Washers with all commercially available bolts provided by your suppliers, quickly and easily.

  • Easy mounting and permanent connection thanks to the inset tabs.
  • Can be combined with all commercially available bolts.
  • Also available in small purchase quantities.
  • Flexible use for various different types of bolts.
  • Permanent securing and correct positioning of HEICO-LOCK® Wedge Lock Washers.
  • Can be re-used several times.
  • Cost savings through increased productivity.
  • Available in steel or stainless steel with narrower and wider contact areas.
  • Available from M8 to M16.
  • Can be supplied completely pre-assembled on request.

Heico-Lock® Combi-Washers
M Steel Item No. Stainless Steel Item No. External-Ø [mm] Box Qty [Pair]
8 HKS-8 HKS-8S 14,0 200
8 HKS-8 HKS-8S 16,6 200
10 HKS-10 HKS-10S 16,9 200
10 HKS-10 HKS-10S 21,0 200
12 HKS-12 HKS-12S 19,5 200
12 HKS-12 HKS-12S 25,4 100
16 HKS-16 HKS-16S 25,4 100
16 HKS-16 HKS-16S 30,7 100

Tension Nut
Tension Nuts with Special Sizes
Reaction Nuts
Multi-Tool
Protection Caps
Accessories

For a secure joint with a HEICO-TEC® Tension Nut, no electric, hydraulic, or pneumatic tools are needed. All you need is a torque wrench.

TENSION NUTS ACCORDING TO ISO 898-2
HEICO-TEC® Tension Nuts in strength class 8 and 10 meet all the requirements of ISO 898-2 which enables you to easily replace any hex nut from the same strength class while also offering all the advantages of a hand-tightened nut.

Our standard program of HEICO-TEC® Tension Nuts offers you the following advantages:

Fast delivery: On stock and therefore directly available
Compatible with DIN EN ISO 898-2: Direct replacement of hex nuts from the same strength class possible
Extended service through consultation as well as installation aids for technical documentation (e.g. assembly template)

In addition to the HEICO-TEC® standard range, we manufacture special tension nuts according to customer specifications. We can tailor HEICO-TEC® Tension Nuts suitable to your specific application. Other strength classes, sizes or thread pitches are also possible as are tension nuts made from special materials or with special coatings.

ADVANTAGES:

  • Product is optimally matched to your application
  • High, technical production know-how
  • Contact on site
  • Project supervision by trained personnel

HEICO-TEC® Reaction Nuts are the ideal complement to the HEICO-TEC® Tension Nut for use with through-bolted connections.

If you already enjoy the advantages of HEICO-TEC® Tension Nuts for active pre-tensioning, you need an equivalent reactive nut on the opposite end. Due to their special shape, HEICO-TEC® Reaction Nuts can flex elastically. And the more elastic a bolted joint is, the more durable and secure it is against untightening and loosening.

ADVANTAGES OF THE HEICO-TEC® REACTION NUT:

  • Even load distribution through concave contact surface
  • Preload losses are effectively reduced
  • No additional space is required, tension nuts and reaction nuts have the same dimensions

COMPATIBLE WITH ISO 898-2

HEICO-TEC® Reaction Nuts meet all requirements of ISO 898-2. They therefore have the same strength as conventional hex nuts and can replace them 1:1. However, they must not be used for active pre-tensioning, rather only on the opposite reactive end.

Due to its unique design, the HEICO-TEC® Tension Nut can be tightened and untightened by hand, making installation easy, reliable and safe.

For use in serial production, HEICO have developed the HEICO-TEC® Multi-Tool. This tool allows the simultaneous tightening of all the pressure bolts, simply by the press of a button, without any additional force being required by the installation personnel.

ADVANTAGES OF THE HEICO-TEC® MULTI-TOOL:

  • Simultaneous tightening of all the pressure bolts without any additional force being required
  • Multi-Tool is easily mounted using spring-loaded sockets
  • Existing hydraulic units can be used without any problem
  • For optimized serial applications

DESIGN AND FUNCTION

The HEICO-TEC® Multi-Tool is equipped with spindles for each pressure bolt which are driven hydraulically. This ensures that each pressure bolt is tightened with the exact same torque. With the HEICO-TEC® Multi-Tool subsequent manual checking with a torque wrench, as is common with other tools, is no longer required, saving precious time.

The HEICO-TEC® Multi-Tool is easily mounted using spring-loaded sockets. During further alignment of the tool the sockets snap in place automatically.

The HEICO-TEC® Multi-Tool is driven by a hydraulic unit incorporating a pump, controls and an oil container. You can either use your existing hydraulic unit or purchase one from HEICO, if preferred.

The torque can be selected by adjusting the hydraulic pressure on a pressure valve. A helpful conversion table is provided along with any HEICO-TEC® Multi-Tool supplied.

HEICO offers protection caps for all standard series HEICO-TEC® Tension Nuts.

The HEICO-TEC® Protection Caps, made of durable elastomer, protect the entire tension nut from external, aggressive influences during operation. In combination with coated HEICO-TEC® Tension Nuts, they are particularly suitable for use in highly corrosive environments, e.g. offshore.

The HEICO-TEC® Protection Caps are greased before assembly and then easily fit onto the tension nuts.

ADVANTAGES OF THE HEICO-TEC® PROTECTION CAPS:

  • Water-repellent and additionally protects HEICO-TEC® Tension Nuts from corrosion
  • Protects against severe damage
  • Available to fit all products of the HEICO-TEC® Tension Nut standard series

Assembly Kit
Assembly Template
Assembly Paste
HDS Impact Sockets

Incorrect assembly and disassembly can damage pressure bolts, pressure pins or the load bearing washer of the HEICO-TEC® Tension Nut. During maintenance these parts could even be lost entirely. For such scenarios HEICO offer assembly or replacement kits.

These kits are available for standard series HEICO-TEC® Tension Nuts of strength classes 8 and 10, including the respective number of pressure bolts and pins as well as the hardened washer.

Replacement pressure bolts, pressure pins and washers are supplied as a complete kit only, not separately.

Assembly is fast and simple with HEICO-TEC® Tension Nuts. In addition to assembly instructions, an assembly template is also available for the standard product range.

The template helps installers tighten the pressure bolts correctly. The template is attached to the tension nut. The pressure bolts are tightened in sequence, according to a colour system: For example, first the orange-coloured then the blue and finally the white. This cycle is repeated until the torque wrench indicates the required tightening torque is achieved.

For easy documentation, the required tightening torque can be noted on the template. This template can be archived with the date as proof the procedure was carried out correctly.

To protect highly stressed parts of the HEICO-TEC® Tension Nut and to maintain constant friction values, HEICO recommends the use of the HEICO-TEC® Assembly Paste as a protective, release and lubricating agent.

The HEICO-TEC® Assembly Paste contains optimally matched solids and selected additives and offers long-lasting protection against corrosion, seizing and abrasion.

The HEICO-TEC® HDS (Heavy-Duty Sockets) impact sockets are the ideal supplement for the professional assembly of HEICO-TEC® Tension Nuts.

HEICO-TEC® HDS impact sockets are particularly designed for heavy-duty applications and, in contrast to conventional sockets, providing a higher load capacity and a long wear resistance. HEICO also offers a long version in addition to the standard impact sockets. This makes it possible to reach complex applications without any problems (e.g. with heavily protruding bolts).