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Heico-Lock

Heico-Tec

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

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).