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Dimensions of Hex Head Cap Screws - N.C. / Coarse Thread

Hex Cap Screws         Hex Cap Screws 

Hex Head Cap Screws
Nominal 
or Basic Product Diameter
E F G H
Body Diameter Width Across Flats
(Wrench Size)
Width Across Corners Head Height Thread Length
Screw L
= 6" or Shorter
 Screw L
= 6" or Greater
Max Min Nom Max Min Max Min Nom Max Min Ref Ref
1/4 .02500 0.2500 0.2450 7/16 0.438 0.428 0.505 0.488 5/32 0.163 0.150 0.750 1.000
5/16 0.3125 0.3125 0.3065 1/2 0.500 0.489 0.577 0.557 13/64 0.211 0.195 0.875 1.125
3/8 0.3750 0.3750 0.3690 9/16 0.562 0.551 0.650 0.628 15/64 0.243 0.226 1.000 1.250
7/16 0.4375 0.4.75 0.4305 5/8 0.625 0.612 0.722 0.698 9/32 0.291 0.272 1.125 1.375
1/2 0.5000 0.5000 0.4930 3/4 0.750 0.736 0.866 0.840 5/16 0.323 0.302 1.250 1.375
9/16 0.5625 0.5625 0.5545 13/16 0.812 0.798 0.938 0.910 23/64 0.371 0.348 1.375 1.625
5/8 0.6250 0.6250 0.6170 15/16 0.938 0.922 1.083 1.051 25/64 0.403 0.378 1.500 1.750
3/4 0.7500 0.7500 0.7410 1-1/8 1.125 1.100 1.299 1.254 15/32 0.483 0.455 1.750 2.000
7/8 0.8750 0.8750 0.8660 1-5/16 1.312 1.285 1.516 1.465 35/64 0.563 0.531 2.000 2.250
1" 1.0000 1.0000 0.990 1-1/2 1.500 1.469 1.732 1.675 39/64 0.627 0.591 2.250 2.500
1-1/8 1.1250 1.1250 1.1140 1-11/16 1.688 1.631 1.949 1.859 11/16 0.718 0.658 2.500 2.750
1-1/4 1.2500 1.2500 1.2390 1-7/8 1.875 1.812 2.165 2.066 25/32 0.813 0.789 2.750 3.000
1-1/2 1.5000 1.5000 1.4880 2-1/4 2.250 2.175 2.598 2.480 1-5/16 0.974 0.902 3.250 3.500

 

 


God Bless America

Fairbury Fastener
23092 E. 800 North Rd. / U.S. Rt 24 East
Fairbury, IL 61739
Phone:  (815) 692-3848
  
FAX:  (815) 692-2200
E- Mail: 
sales @ fairbury fastener . com

Call 815-692-3848
to place your order

We do NOT process international orders.  Prices are subject to change and may be different than shown on our site.  
Call for current pricing.
 All Returns subject to restocking.

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