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HL221-6-4

Hi-Lok™Lok Hi

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Description

100°, flush ms24694 tension head, oversized for hl21, alloy steel - cadmium plated

Specifications

Fastener Length 0.925 inches minimum and 0.945 inches maximum
Grip Length 0.255 inches maximum
Head Height 0.170 inches minimum and 0.180 inches maximum
Head Major Diameter 0.735 inches minimum and 0.770 inches maximum
Heat Treatment T-6 solution heat treated
Lubrication Cetyl alcohol, spec 305, hi-shear corp
Material Aluminum
Material Specification Qq-a-225/9 fed spec single material response or qq-a-430 fed spec single material response
Shank Diameter 0.4985 inches minimum and 0.4995 inches maximum
Shank Style Pin-rivet, straight, threaded
Surface Treatment Anodize
Surface Treatment Specification Mil-a-8625 mil spec single treatment response
Thread Class 3a
Thread Direction Right-hand
Thread Qty Per Inch (tpi) 20
Thread Series Designator UNJF
Thread Size 0.500
Width Between Flats 0.269 inches minimum and 0.289 inches maximum

Cross-reference

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Catalog data updated 2026-07-05. Report a data error