Hex Head Machine Screws

Nominal Screw Size	0000 thru 00	0 thru 12	1/4 thru 3/4
Nominal Screw Length	Tolerance on Length
Up to 1/2 in., incl.	-0.01	-0.02	-0.03
Over 1/2 to 1 in., incl.	-0.02	-0.03	-0.03
Over 1 to 2 in., incl.	-	-0.06	-0.06
Over 2 in.	-	-0.09	-0.09

May also be available in Nylon, PVC, Polypropylene, Phenolic, PTFE, G10, Kel-F®, Delrin/Acetal, Neoprene, Mylar, Glass-Filled Nylon, Peek, CPVC, ABS, PVDF / Kynar, Isoplast, Polycarbonate, Polyethylene, or Ultem®

Hex Head Machine Screws Variations

Description	A	H	Length	Thread Size	W	Quote
256 X 0.094	3.048 mm - 3.175mm	1.016 mm - 1.270mm	2.388 mm	256	3.404 mm
256 X 0.125	3.048 mm - 3.175mm	1.016 mm - 1.270mm	3.175 mm	256	3.404 mm
256 X 0.156	3.048 mm - 3.175mm	1.016 mm - 1.270mm	3.962 mm	256	3.404 mm
256 X 0.187	3.048 mm - 3.175mm	1.016 mm - 1.270mm	4.750 mm	256	3.404 mm
256 X 0.25	3.048 mm - 3.175mm	1.016 mm - 1.270mm	6.350 mm	256	3.404 mm
256 X 0.281	3.048 mm - 3.175mm	1.016 mm - 1.270mm	7.137 mm	256	3.404 mm
256 X 0.312	3.048 mm - 3.175mm	1.016 mm - 1.270mm	7.925 mm	256	3.404 mm
256 X 0.375	3.048 mm - 3.175mm	1.016 mm - 1.270mm	9.525 mm	256	3.404 mm
256 X 0.391	3.048 mm - 3.175mm	1.016 mm - 1.270mm	9.931 mm	256	3.404 mm
256 X 0.437	3.048 mm - 3.175mm	1.016 mm - 1.270mm	11.100 mm	256	3.404 mm
256 X 0.5	3.048 mm - 3.175mm	1.016 mm - 1.270mm	12.700 mm	256	3.404 mm
256 X 0.562	3.048 mm - 3.175mm	1.016 mm - 1.270mm	14.275 mm	256	3.404 mm
256 X 0.625	3.048 mm - 3.175mm	1.016 mm - 1.270mm	15.875 mm	256	3.404 mm
256 X 0.75	3.048 mm - 3.175mm	1.016 mm - 1.270mm	19.050 mm	256	3.404 mm
256 X 0.875	3.048 mm - 3.175mm	1.016 mm - 1.270mm	22.225 mm	256	3.404 mm
256 X 1	3.048 mm - 3.175mm	1.016 mm - 1.270mm	25.400 mm	256	3.404 mm
256 X 1.125	3.048 mm - 3.175mm	1.016 mm - 1.270mm	28.575 mm	256	3.404 mm
264 X 0.187	3.048 mm - 3.175mm	1.016 mm - 1.270mm	4.750 mm	264	3.404 mm
264 X 0.375	3.048 mm - 3.175mm	1.016 mm - 1.270mm	9.525 mm	264	3.404 mm
348 X 0.125	4.597 mm - 4.775mm	1.118 mm - 1.397mm	3.175 mm	348	5.131 mm
348 X 0.187	4.597 mm - 4.775mm	1.118 mm - 1.397mm	4.750 mm	348	5.131 mm
348 X 0.25	4.597 mm - 4.775mm	1.118 mm - 1.397mm	6.350 mm	348	5.131 mm
348 X 0.312	4.597 mm - 4.775mm	1.118 mm - 1.397mm	7.925 mm	348	5.131 mm
348 X 0.375	4.597 mm - 4.775mm	1.118 mm - 1.397mm	9.525 mm	348	5.131 mm
348 X 0.437	4.597 mm - 4.775mm	1.118 mm - 1.397mm	11.100 mm	348	5.131 mm
348 X 0.5	4.597 mm - 4.775mm	1.118 mm - 1.397mm	12.700 mm	348	5.131 mm
348 X 0.75	4.597 mm - 4.775mm	1.118 mm - 1.397mm	19.050 mm	348	5.131 mm
356 X 0.312	4.597 mm - 4.775mm	1.118 mm - 1.397mm	7.925 mm	356	5.131 mm
436 X 0.5	4.597 mm - 4.775mm	1.245 mm - 1.524mm	12.700 mm	436	5.131 mm
440 X 0.094	4.597 mm - 4.775mm	1.245 mm - 1.524mm	2.388 mm	440	5.131 mm
440 X 0.125	4.597 mm - 4.775mm	1.245 mm - 1.524mm	3.175 mm	440	5.131 mm
440 X 0.141	4.597 mm - 4.775mm	1.245 mm - 1.524mm	3.581 mm	440	5.131 mm
440 X 0.187	4.597 mm - 4.775mm	1.245 mm - 1.524mm	4.750 mm	440	5.131 mm
440 X 0.25	4.597 mm - 4.775mm	1.245 mm - 1.524mm	6.350 mm	440	5.131 mm
440 X 0.281	4.597 mm - 4.775mm	1.219 mm - 1.524mm	7.137 mm	440	5.131 mm
440 X 0.312	4.597 mm - 4.775mm	1.245 mm - 1.524mm	7.925 mm	440	5.131 mm
440 X 0.375	4.597 mm - 4.775mm	1.245 mm - 1.524mm	9.525 mm	440	5.131 mm
440 X 0.437	4.597 mm - 4.775mm	1.245 mm - 1.524mm	11.100 mm	440	5.131 mm
440 X 0.5	4.597 mm - 4.775mm	1.245 mm - 1.524mm	12.700 mm	440	5.131 mm
440 X 0.562	4.597 mm - 4.775mm	1.245 mm - 1.524mm	14.275 mm	440	5.131 mm
440 X 0.625	4.597 mm - 4.775mm	1.245 mm - 1.524mm	15.875 mm	440	5.131 mm
440 X 0.687	4.597 mm - 4.775mm	1.245 mm - 1.524mm	17.450 mm	440	5.131 mm
440 X 0.75	4.597 mm - 4.775mm	1.245 mm - 1.524mm	19.050 mm	440	5.131 mm
440 X 0.875	4.597 mm - 4.775mm	1.245 mm - 1.524mm	22.225 mm	440	5.131 mm
440 X 1	4.597 mm - 4.775mm	1.245 mm - 1.524mm	25.400 mm	440	5.131 mm
440 X 1.125	4.597 mm - 4.775mm	1.245 mm - 1.524mm	28.575 mm	440	5.131 mm
440 X 1.187	4.597 mm - 4.775mm	1.245 mm - 1.524mm	30.150 mm	440	5.131 mm
440 X 1.25	4.597 mm - 4.775mm	1.245 mm - 1.524mm	31.750 mm	440	5.131 mm
440 X 1.37	4.597 mm - 4.775mm	1.245 mm - 1.524mm	34.925 mm	440	5.131 mm
440 X 1.5	4.597 mm - 4.775mm	1.245 mm - 1.524mm	38.100 mm	440	5.131 mm
440 X 1.625	4.597 mm - 4.775mm	1.245 mm - 1.524mm	41.275 mm	440	5.131 mm
440 X 1.75	4.597 mm - 4.775mm	1.245 mm - 1.524mm	44.450 mm	440	5.131 mm
448 X 0.25	4.597 mm - 4.775mm	1.245 mm - 1.524mm	6.350 mm	448	5.131 mm
632 X 0.094	6.198 mm - 6.350mm	2.032 mm - 2.362mm	2.388 mm	632	6.909 mm
632 X 0.125	6.198 mm - 6.350mm	2.032 mm - 2.362mm	3.175 mm	632	6.909 mm
632 X 0.156	6.198 mm - 6.350mm	2.032 mm - 2.362mm	3.962 mm	632	6.909 mm
632 X 0.187	6.198 mm - 6.350mm	2.032 mm - 2.362mm	4.750 mm	632	6.909 mm
632 X 0.25	6.198 mm - 6.350mm	2.032 mm - 2.362mm	6.350 mm	632	6.909 mm
632 X 0.312	6.198 mm - 6.350mm	2.032 mm - 2.362mm	7.925 mm	632	6.909 mm
632 X 0.375	6.198 mm - 6.350mm	2.032 mm - 2.362mm	9.525 mm	632	6.909 mm
632 X 0.437	6.198 mm - 6.350mm	2.032 mm - 2.362mm	11.100 mm	632	6.909 mm
632 X 0.5	6.198 mm - 6.350mm	2.032 mm - 2.362mm	12.700 mm	632	6.909 mm
632 X 0.562	6.198 mm - 6.350mm	2.032 mm - 2.362mm	14.275 mm	632	6.909 mm
632 X 0.625	6.198 mm - 6.350mm	2.032 mm - 2.362mm	15.875 mm	632	6.909 mm
632 X 0.687	6.198 mm - 6.350mm	2.032 mm - 2.362mm	17.450 mm	632	6.909 mm
632 X 0.75	6.198 mm - 6.350mm	2.032 mm - 2.362mm	19.050 mm	632	6.909 mm
632 X 0.875	6.198 mm - 6.350mm	2.032 mm - 2.362mm	22.225 mm	632	6.909 mm
632 X 1	6.198 mm - 6.350mm	2.032 mm - 2.362mm	25.400 mm	632	6.909 mm
632 X 1.125	6.198 mm - 6.350mm	2.032 mm - 2.362mm	28.575 mm	632	6.909 mm
632 X 1.25	6.198 mm - 6.350mm	2.032 mm - 2.362mm	31.750 mm	632	6.909 mm
632 X 1.5	6.198 mm - 6.350mm	2.032 mm - 2.362mm	38.100 mm	632	6.909 mm
632 X 1.625	6.198 mm - 6.350mm	2.032 mm - 2.362mm	41.275 mm	632	6.909 mm
632 X 1.75	6.198 mm - 6.350mm	2.032 mm - 2.362mm	44.450 mm	632	6.909 mm
632 X 1.875	6.198 mm - 6.350mm	2.032 mm - 2.362mm	47.625 mm	632	6.909 mm
632 X 2	6.198 mm - 6.350mm	2.032 mm - 2.362mm	50.800 mm	632	6.909 mm
632 X 2.25	6.198 mm - 6.350mm	2.032 mm - 2.362mm	57.150 mm	632	6.909 mm
640 X 0.25	6.198 mm - 6.350mm	2.032 mm - 2.362mm	6.350 mm	640	6.909 mm
640 X 0.375	6.198 mm - 6.350mm	2.032 mm - 2.362mm	9.525 mm	640	6.909 mm
640 X 0.75	6.198 mm - 6.350mm	2.032 mm - 2.362mm	19.050 mm	640	6.909 mm
640 X 1	6.198 mm - 6.350mm	2.032 mm - 2.362mm	25.400 mm	640	6.909 mm
832 X 0.125	6.198 mm - 6.350mm	2.438 mm - 2.794mm	3.175 mm	832	6.909 mm
832 X 0.187	6.198 mm - 6.350mm	2.438 mm - 2.794mm	4.750 mm	832	6.909 mm
832 X 0.25	6.198 mm - 6.350mm	2.438 mm - 2.794mm	6.350 mm	832	6.909 mm
832 X 0.281	5.690 mm - 6.350mm	2.438 mm - 2.794mm	7.137 mm	832	6.909 mm
832 X 0.312	6.198 mm - 6.350mm	2.438 mm - 2.794mm	7.925 mm	832	6.909 mm
832 X 0.375	6.198 mm - 6.350mm	2.438 mm - 2.794mm	9.525 mm	832	6.909 mm
832 X 0.437	6.198 mm - 6.350mm	2.438 mm - 2.794mm	11.100 mm	832	6.909 mm
832 X 0.5	6.198 mm - 6.350mm	2.438 mm - 2.794mm	12.700 mm	832	6.909 mm
832 X 0.625	6.198 mm - 6.350mm	2.438 mm - 2.794mm	15.875 mm	832	6.909 mm
832 X 0.75	6.198 mm - 6.350mm	2.438 mm - 2.794mm	19.050 mm	832	6.909 mm
832 X 0.875	6.198 mm - 6.350mm	2.438 mm - 2.794mm	22.225 mm	832	6.909 mm
832 X 1	6.198 mm - 6.350mm	2.438 mm - 2.794mm	25.400 mm	832	6.909 mm
832 X 1.125	6.198 mm - 6.350mm	2.438 mm - 2.794mm	28.575 mm	832	6.909 mm
832 X 1.25	6.198 mm - 6.350mm	2.438 mm - 2.794mm	31.750 mm	832	6.909 mm
832 X 1.375	6.198 mm - 6.350mm	2.438 mm - 2.794mm	34.925 mm	832	6.909 mm
832 X 1.5	6.198 mm - 6.350mm	2.438 mm - 2.794mm	38.100 mm	832	6.909 mm
832 X 1.75	6.198 mm - 6.350mm	2.438 mm - 2.794mm	44.450 mm	832	6.909 mm
832 X 1.875	6.198 mm - 6.350mm	2.438 mm - 2.794mm	47.625 mm	832	6.909 mm
832 X 2	6.198 mm - 6.350mm	2.438 mm - 2.794mm	50.800 mm	832	6.909 mm
1024 X 0.125	7.747 mm - 7.925mm	2.667 mm - 3.048mm	3.175 mm	1024	8.636 mm
1024 X 0.187	7.747 mm - 7.925mm	2.667 mm - 3.048mm	4.750 mm	1024	8.636 mm
1024 X 0.25	7.747 mm - 7.925mm	2.667 mm - 3.048mm	6.350 mm	1024	8.636 mm
1024 X 0.312	7.747 mm - 7.925mm	2.667 mm - 3.048mm	7.925 mm	1024	8.636 mm
1024 X 0.375	7.747 mm - 7.925mm	2.667 mm - 3.048mm	9.525 mm	1024	8.636 mm
1024 X 0.5	7.747 mm - 7.925mm	2.667 mm - 3.048mm	12.700 mm	1024	8.636 mm
1024 X 0.625	7.747 mm - 7.925mm	2.667 mm - 3.048mm	15.875 mm	1024	8.636 mm
1024 X 0.75	7.747 mm - 7.925mm	2.667 mm - 3.048mm	19.050 mm	1024	8.636 mm
1024 X 1	7.747 mm - 7.925mm	2.667 mm - 3.048mm	25.400 mm	1024	8.636 mm
1024 X 1.25	7.747 mm - 7.925mm	2.667 mm - 3.048mm	31.750 mm	1024	8.636 mm
1024 X 1.5	7.747 mm - 7.925mm	2.667 mm - 3.048mm	38.100 mm	1024	8.636 mm
1032 X 0.125	7.747 mm - 7.925mm	2.667 mm - 3.048mm	3.175 mm	1032	8.636 mm
1032 X 0.187	7.747 mm - 7.925mm	2.667 mm - 3.048mm	4.750 mm	1032	8.636 mm
1032 X 0.25	7.747 mm - 7.925mm	2.667 mm - 3.048mm	6.350 mm	1032	8.636 mm
1032 X 0.312	7.747 mm - 7.925mm	2.667 mm - 3.048mm	7.925 mm	1032	8.636 mm
1032 X 0.375	7.747 mm - 7.925mm	2.667 mm - 3.048mm	9.525 mm	1032	8.636 mm
1032 X 0.437	7.747 mm - 7.925mm	2.667 mm - 3.048mm	11.100 mm	1032	8.636 mm
1032 X 0.5	7.747 mm - 7.925mm	2.667 mm - 3.048mm	12.700 mm	1032	8.636 mm
1032 X 0.625	7.747 mm - 7.925mm	2.667 mm - 3.048mm	15.875 mm	1032	8.636 mm
1032 X 0.75	7.747 mm - 7.925mm	2.667 mm - 3.048mm	19.050 mm	1032	8.636 mm
1032 X 0.812	7.747 mm - 7.925mm	2.667 mm - 3.048mm	20.625 mm	1032	8.636 mm
1032 X 0.875	7.747 mm - 7.925mm	2.667 mm - 3.048mm	22.225 mm	1032	8.636 mm
1032 X 1	7.747 mm - 7.925mm	2.667 mm - 3.048mm	25.400 mm	1032	8.636 mm
1032 X 1.25	7.747 mm - 7.925mm	2.667 mm - 3.048mm	31.750 mm	1032	8.636 mm
1032 X 1.5	7.747 mm - 7.925mm	2.667 mm - 3.048mm	38.100 mm	1032	8.636 mm
1032 X 1.75	7.747 mm - 7.925mm	2.667 mm - 3.048mm	44.450 mm	1032	8.636 mm
1032 X 2	7.747 mm - 7.925mm	2.667 mm - 3.048mm	50.800 mm	1032	8.636 mm
1/4-20 X 0.25	9.322 mm - 9.525mm	4.369 mm - 4.826mm	6.350 mm	1/4-20	10.389 mm
1/4-20 X 0.312	9.322 mm - 9.525mm	4.369 mm - 4.826mm	7.925 mm	1/4-20	10.389 mm
1/4-20 X 0.375	9.322 mm - 9.525mm	4.623 mm - 4.826mm	9.525 mm	1/4-20	10.389 mm
1/4-20 X 0.5	9.322 mm - 9.525mm	4.369 mm - 4.826mm	12.700 mm	1/4-20	10.389 mm
1/4-20 X 0.625	9.322 mm - 9.525mm	4.369 mm - 4.826mm	15.875 mm	1/4-20	10.389 mm
1/4-20 X 0.75	9.322 mm - 9.525mm	4.369 mm - 4.826mm	19.050 mm	1/4-20	10.389 mm
1/4-20 X 0.875	9.322 mm - 9.525mm	4.369 mm - 4.826mm	22.225 mm	1/4-20	10.389 mm
1/4-20 X 1	9.322 mm - 9.525mm	4.369 mm - 4.826mm	25.400 mm	1/4-20	10.389 mm
1/4-20 X 1.25	9.322 mm - 9.525mm	4.369 mm - 4.826mm	31.750 mm	1/4-20	10.389 mm
1/4-20 X 1.5	9.322 mm - 9.525mm	4.369 mm - 4.826mm	38.100 mm	1/4-20	10.389 mm
1/4-20 X 1.75	9.322 mm - 9.525mm	4.369 mm - 4.826mm	44.450 mm	1/4-20	10.389 mm
1/4-20 X 2	9.322 mm - 9.525mm	4.369 mm - 4.826mm	50.800 mm	1/4-20	10.389 mm
1/4-20 X 2.5	9.322 mm - 9.525mm	4.369 mm - 4.826mm	63.500 mm	1/4-20	10.389 mm
1/4-28 X 0.187	9.322 mm - 9.525mm	4.369 mm - 4.826mm	4.750 mm	1/4-20	10.389 mm
1/4-28 X 0.25	9.322 mm - 9.525mm	4.369 mm - 4.826mm	6.350 mm	1/4-28	10.389 mm
1/4-28 X 0.375	9.322 mm - 9.525mm	4.369 mm - 4.826mm	9.525 mm	1/4-28	10.389 mm
1/4-28 X 0.625	9.322 mm - 9.525mm	4.369 mm - 4.826mm	15.875 mm	1/4-28	10.389 mm
1/4-28 X 0.75	9.322 mm - 9.525mm	4.369 mm - 4.826mm	19.050 mm	1/4-28	10.389 mm
1/4-28 X 1	9.322 mm - 9.525mm	4.369 mm - 4.826mm	25.400 mm	1/4-28	10.389 mm

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Hex Head Machine Screws

Hex Head Machine Screws Variations

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