HI-TIGUE™️ (HLT™️) fasteners

HI-LOK / HI-TIGUE Pins

The most current version of the drawings below can be found at https://www.lisi-aerospace.com/en/

Standard ConfigurationHI-TIGUE^TM Pins*
Selection Guide
Minimum Shear Strength**	Material	Suggested Maximum Temperature (subject to finish)**	Head Style	Nominal size shank	1/64″ oversize shank	1/32″ oversize shank
95 Ksi	6Al-4V Titanium	750º F	Protruding Shear	HLT450	HLT434	HLT634
			100º Reduced Flush Shear	HLT451	HLT435	HLT635
			Protruding Tension	HLT452	HLT436	HLT636
			100º Flush MS24694 Tension	HLT453	HLT437	HLT637
108 Ksi	Alloy Steel ¹	450ºF ¹	Protruding Shear	HL328 ²	HLT428	HLT628
108 Ksi			100º Reduced Flush Shear	HL329 ²	HLT1001 ¹	HLT629
95 Ksi			Protruding Tension	HL326 ²	HLT426	HLT626
95 Ksi			100º Flush MS24694 Tension	HL327 ²	HLT427	HLT627
95 Ksi	A-286 Hi-Temperature Alloy	1200ºF	Protruding Shear	HLT40	HLT140	HLT240
			100º Reduced Flush Shear	HLT41	HLT141	HLT241
			Protruding Tension	HLT42	HLT142	HLT242
			100º Flush MS24694 Tension	HLT43	HLT143	HLT243
125 Ksi	PH13-8Mo	600ºF	Protruding Shear	HLT50	HLT150	HLT250
			100º Reduced Flush Shear Crown	HLT51	HLT151	HLT251
			Protruding Tension	HLT52	HLT152	HLT252
			100º MS24694 Flush Crown Tension	HLT53	HLT153	HLT253
125 Ksi	Inconel 718	1200ºF	Protruding Shear	HLT420	HLT620	HLT714
			100º Reduced Flush Shear	HLT421	HLT621	HLT715
			Protruding Tension	HLT422	HLT622	HLT716
			100º Flush MS24694 Tension	HLT423	HLT623	HLT717
Notes:
* Refer to standards pages for recommended mating collars
** Shear strength at room temperature
¹: Alloy Steel, except HLT1001(Inconel 718, 108Ksi shear pin)
²: HL328, HL329, HL326, and HL327 are HI-TIGUE pins, first developed before the ‘HLT’ nomenclature was introduced