| EXPANSION DEVICE | SERRATED STEM-TYPE W |
| FASTENER LENGTH | 0.530 INCHES MAXIMUM |
| GRIP LENGTH | 0.344 INCHES MINIMUM AND 0.407 INCHES MAXIMUM |
| HARDNESS RATING | 48.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM STEM |
| HEAD HEIGHT | 0.062 INCHES MINIMUM AND 0.070 INCHES MAXIMUM |
| HEAD STYLE | TAPERED PAN |
| HEAD MAJOR DIAMETER | 0.250 INCHES MINIMUM AND 0.272 INCHES MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | FASTNER BLIND |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A331 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| SHANK DIAMETER | 0.162 INCHES MINIMUM AND 0.164 INCHES MAXIMUM |
| SHANK STYLE | SELF-PLUGGING MECHANICALLY LOCKED STEM |
| SHEAR STRENGTH | 112000 SINGLE POUNDS PER SQUARE INCH |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-83488 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ALUMINUM OVERALL |