Technical details

• Hi-Shear drawing HL1012 revision 18 identifies this designation as a HI-LOK pin with a protruding tension head and a special socket.
• The dash 10 row lists 0.3125 in nominal pin diameter and head diameter A 0.475 to 0.505 in.
• The drawing lists shank D 0.3110 to 0.3120 in without coating or solid-film lubricant.
• Grip dash 8 gives a 0.5 in maximum-grip value with a drawing tolerance of plus or minus 0.005 in.
• The diameter row specifies a modified 0.3125-24 UNJF-3A thread.
• The drawing specifies 6Al-4V titanium alloy to AMS 4928 or AMS 4967.
• Finish GL specifies HI-KOTE 1 or 1 NC aluminum pigmented coating to Hi-Shear Spec. 294 on threads only, with white identification on the thread end and cetyl alcohol lubricant to Hi-Shear Specification 305. The drawing prohibits shank overspray.