| FASTENER LENGTH | 1.235 INCHES MINIMUM AND 1.265 INCHES MAXIMUM |
| HEAD DIAMETER | 0.205 INCHES MINIMUM AND 0.219 INCHES MAXIMUM |
| HEAD HEIGHT | 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM |
| HEAD STYLE | KNURLED NO. 2 |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MATERIAL ACCOMMODATED THICKNESS | 0.064 INCHES MINIMUM AND 0.125 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE SECONDARY WASHERFED STD 66 FED STD ALL MATERIAL RESPONSES PRIMARY WASHERQQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE SPRINGST0304 FED STD SINGLE MATERIAL RESPONSE STAND-OFFFED STD 66 FED STD ALL MATERIAL RESPONSES FASTENER |
| MATERIAL | STEEL COMP 301 SECONDARY WASHERSTEEL COMP 302 SPRINGSTEEL COMP 304 STAND-OFFSTEEL FASTENER |
| NOMINAL THREAD DIAMETER | 0.112 INCHES |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924,CL2 MIL SPEC SINGLE TREATMENT RESPONSE SECONDARY WASHERMIL-C-13924,CL2 MIL SPEC SINGLE TREATMENT RESPONSE PRIMARY WASHERQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SPRINGMIL-C-13924,CL2 MIL SPEC SINGLE TREATMENT RESPONSE STAND-OFFMIL-C-13924,CL2 MIL SPEC SINGLE TREATMENT RESPONSE FASTENER |
| SURFACE TREATMENT | OXIDE SECONDARY WASHEROXIDE PRIMARY WASHERPASSIVATE SPRINGOXIDE STAND-OFFOXIDE FASTENER |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.188 INCHES MINIMUM AND 0.218 INCHES MAXIMUM |
| THREAD CLASS | 2A |
| THREAD SERIES DESIGNATOR | UNC |
| THREAD QUANTITY PER INCH | 40 |