| EFFECTIVE LENGTH | 1.420 INCHES NOMINAL |
| DIAMETER | 0.308 INCHES MINIMUM AND 0.310 INCHES MAXIMUM |
| FIRST END STYLE | CHAMFERED |
| FIRST END TAPER LENGTH | 0.020 INCHES NOMINAL |
| HEAD STYLE | FLAT CHAMFER |
| HEIGHT | 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | BS 970,EN36B,K3339 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| PIN HEAD DIAMETER | 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| SECOND UNDERCUT DIAMETER | 0.295 INCHES MINIMUM AND 0.300 INCHES MAXIMUM |
| STYLE DESIGNATOR | GROOVE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DEF 29,CL 1,K3339 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PHOSPHATE OVERALL |
| UNDER HEAD LENGTH | 1.680 INCHES MINIMUM AND 1.700 INCHES MAXIMUM |
| UNDERCUT DIAMETER | 0.220 INCHES MINIMUM AND 0.225 INCHES MAXIMUM |
| UNDERCUT WIDTH | 0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM |