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HL31-8-9

Hi-Lok™Rivet

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Description

Fastener Length: 61/64", Thread Size: 1/4"

Specifications

Countersink Angle 100.0 degrees
Fastener Length 0.947 inches minimum and 0.967 inches maximum
Grip Length 0.567 inches maximum
Head Major Diameter 0.390 inches minimum and 0.395 inches maximum
Head Style Flush countersunk
Lubrication Cetyl alcohol
Material Steel
Material Specification Mil-s-18732 mil spec single material response or ams 5628 assn std single material response
Shank Diameter 0.2485 inches minimum and 0.2495 inches maximum
Shank Style Pin-rivet, straight, threaded
Shear Strength 125000 single pounds per square inch
Surface Treatment Passivate
Surface Treatment Specification 258,fscm 73197 mfr ref single treatment response
Thread Class 3a
Thread Direction Right-hand
Thread Qty Per Inch (tpi) 28
Thread Series Designator UNJF
Thread Size 0.250
Width Between Flats 0.095 inches minimum and 0.097 inches maximum

Other sizes

Parts that share this base number, ordered by size. Always verify the full specification before substituting.

Cross-reference

No interchangeable or dimensionally similar parts are on record for HL31-8-9. Try the cross-reference lookup to search by a different part number.

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