NAS BOLTS
NAS 13 Series Close Tolerance Bolts
These National Aerospace Standard, fine threaded dimple-head hex bolts have a minimum tensile strength of 160,000 psi and a minimum shear strength of 95,000 psi. Thread length is consistent within each diameter and grip lengths are available in 1/16" increments. These NAS bolts are used in applications where a premium quality, high strength bolt is necessary.
1300 Series NAS Bolts |
Series | Thread(UNF) | Thread Length | Head Size |
1303 | 10/32 | 0.338" | 0.376" |
1304 | 1/4-28 | 0.425" | 0.439" |
1305 | 5/16-24 | 0.469" | 0.502" |
1306 | 3/8-24 | 0.578" | 0.564" |
1300 Series NAS Bolts Size ChartTotal Length of Each NAS Bolt Series | |
DASH no: | GRIP LENGTH | 1303 | 1304 | 1305 | 1306 |
-1 | 0.062 | 0.400 | 0.487 | 0.531 | 0.640 |
-2 | 0.125 | 0.463 | 0.550 | 0.594 | 0.703 |
-3 | 0.188 | 0.526 | 0.613 | 0.657 | 0.766 |
-4 | 0.250 | 0.588 | 0.675 | 0.719 | 0.828 |
-5 | 0.312 | 0.650 | 0.737 | 0.781 | 0.890 |
-6 | 0.375 | 0.713 | 0.800 | 0.844 | 0.953 |
-7 | 0.438 | 0.776 | 0.863 | 0.907 | 1.016 |
-8 | 0.500 | 0.838 | 0.925 | 0.969 | 1.078 |
-9 | 0.562 | 0.900 | 0.987 | 1.031 | 1.140 |
-10 | 0.625 | 0.963 | 1.050 | 1.094 | 1.203 |
-11 | 0.688 | 1.026 | 1.113 | 1.157 | 1.266 |
-12 | 0.750 | 1.088 | 1.175 | 1.219 | 1.328 |
-13 | 0.812 | 1.150 | 1.237 | 1.281 | 1.390 |
-14 | 0.875 | 1.213 | 1.300 | 1.344 | 1.453 |
-15 | 0.938 | 1.276 | 1.363 | 1.407 | 1.516 |
-16 | 1.000 | 1.338 | 1.425 | 1.469 | 1.587 |
-17 | 1.062 | 1.400 | 1.487 | 1.531 | 1.640 |
-18 | 1.125 | 1.463 | 1.550 | 1.594 | 1.703 |
-19 | 1.188 | 1.526 | 1.613 | 1.657 | 1.766 |
-20 | 1.250 | 1.588 | 1.675 | 1.719 | 1.828 |
-21 | 1.312 | 1.650 | 1.737 | 1.781 | 1.890 |
-22 | 1.375 | 1.713 | 1.800 | 1.844 | 1.953 |
-23 | 1.438 | 1.776 | 1.863 | 1.907 | 2.016 |
-24 | 1.500 | 1.838 | 1.925 | 1.969 | 2.078 |
-25 | 1.562 | 1.900 | 1.987 | 2.031 | 2.140 |
-26 | 1.625 | 1.963 | 2.050 | 2.094 | 2.203 |
-27 | 1.688 | 2.026 | 2.113 | 2.157 | 2.266 |
-28 | 1.750 | 2.088 | 2.175 | 2.219 | 2.328 |
-29 | 1.812 | 2.150 | 2.237 | 2.281 | 2.390 |
-30 | 1.875 | 2.213 | 2.300 | 2.344 | 2.453 |
-31 | 1.938 | 2.176 | 2.363 | 2.407 | 2.516 |
-32 | 2.000 | 2.338 | 2.425 | 2.469 | 2.587 |
-33 | 2.062 | 2.400 | 2.487 | 2.531 | 2.640 |
-34 | 2.125 | 2.463 | 2.550 | 2.594 | 2.703 |
-35 | 2.188 | 2.526 | 2.613 | 2.657 | 2.766 |
-36 | 2.250 | 2.588 | 2.675 | 2.719 | 2.828 |