SAE Nuts & Bolts

Written by rsdoran

SAE Bolts, Nuts & Washers   Size & Threads/lnch Series Designation Tap Drill Clearance Drill Counter Bore Nut Points Nut Flats Washer I.D. Washer O.D. 0-80 UNF 0.046 0.070 1/8 0.180 0.156 0.078 0.187 1-64 UNC 0.059 0.089 5/32 0.180 0.156 0.099 0.250 1-72 UNF               2-56 UNC 0.070 0.104 3/16 0.217 0.187 0.099 0.250 2-64 UNF               3-48 UNC 0.078 0.120 3/16 0.217 0.187 0.105 0.250 3-56 UNF               4-40 UNC 0.089 0.136 7/32 0.289 0.250 0.125 0.312 4-48 UNF               5-40 UNC               5-44 UNF                6-32 UNC 0.106 0.161 9/32 0.361 0.312 0.149 0.375 6-40 UNF               8-32 UNC 0.136 0.189 5/16 0.397 0.343 0.174 0.375 8-36 UNF               10-24 UNC 0.149 0.213 11/32 0.433 0.375 0.203 0.437 10-32 UNF               12-24 UNC               12-28 UNF               1/4-20 UNC 0.201 0.281 7/16 0.505 0.437 0.265 0.500 1/4-28 UNF               5/16-18 UNC               5/16-24 UNF               3/8-16 UNC               3/8-24 UNF               7/16-14 UNC               7/16-20 UNF               1/2-13 UNC               1/2-20 UNF               9/16-12 UNC               9/16-18 5/8-11 5/8-18 3/4-10 3/4-16 UNF UNC UNF UNC UNF   7/8-9 7/8-14 1-8 1-12 1-14 UNC UNF UNC UNF UN 11/8-7 11/8-8 11/8-12 11/4-7 1114-8 UNC UN UNF UNC UN 11/4-12 1 3/8-6 1 3/8-8 1 3/8-12 11/2-6 UNF UNC UN UNF UNC 1 1/2-8 1 1/2-12 1 5/8-8 1 3/4-5 1 3/4-8 UN UNC UN UNC UN 1 7/8-8 2-4 1/2 2-8 2 1/4-4.5 2 1/4-8 UN UNC UN UNC UN 2 1/2-4 2 1/2-8 2 3/4-4 2 3/4-8 3-4 UNC UN UNC UN UNC 3-8 3 1/4-4 3 1/4-8 3 1/2-4 3 1/2-8 UN UNC UN UNC UN 3 3/4-4 3 3/4-8 4-4 4-8 UNC UN UNC UN 1) Nut Points is the distance between opposite corners of hex nuts. 2) Nut Flats is the distance between opposite sides of hex nuts.

 

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