Knurled Head Thumb 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®

Knurled Head Thumb Screws Variations

Description	A	B	C	Length	Thread Size	Quote
440 X 0.187	0.3	0.28	0.125	0.187	440
440 X 0.25	0.3	0.28	0.125	0.25	440
440 X 0.375	0.3	0.28	0.125	0.375	440
440 X 0.5	0.3	0.28	0.125	0.5	440
440 X 0.75	0.3	0.28	0.125	0.75	440
632 X 0.25	0.36	0.275	0.125	0.25	632
632 X 0.375	0.36	0.275	0.125	0.375	632
632 X 0.5	0.36	0.275	0.125	0.5	632
632 X 0.75	0.36	0.275	0.125	0.75	632
632 X 1	0.36	0.275	0.125	1	632
832 X 0.187	0.425	0.305	0.14	0.187	832
832 X 0.25	0.425	0.305	0.14	0.25	832
832 X 0.375	0.425	0.305	0.14	0.375	832
832 X 0.5	0.425	0.305	0.14	0.5	832
832 X 0.75	0.425	0.305	0.14	0.75	832
832 X 1	0.425	0.305	0.14	1	832
1024 X 0.5	0.425	0.325	0.14	0.5	1024
1024 X 0.75	0.425	0.325	0.14	0.75	1024
1024 X 1	0.425	0.325	0.14	1	1024
1024 X 1.25	0.425	0.325	0.14	1.25	1024
1024 X 2	0.425	0.325	0.14	2	1024
1032 X 0.375	0.425	0.325	0.14	0.375	1032
1032 X 0.5	0.425	0.325	0.14	0.5	1032
1032 X 0.75	0.425	0.325	0.14	0.75	1032
1032 X 1	0.425	0.325	0.14	1	1032
1032 X 1.5	0.425	0.325	0.14	1.5	1032
1032 X 2	0.425	0.325	0.14	2	1032
1/4-20 X 0.5	0.54	0.365	0.155	0.5	1/4-20
1/4-20 X 0.75	0.54	0.365	0.155	0.75	1/4-20
1/4-20 X 1	0.54	0.365	0.155	1	1/4-20
1/4-20 X 1.25	0.54	0.365	0.155	1.25	1/4-20
1/4-20 X 1.5	0.54	0.365	0.155	1.5	1/4-20
5/16-18 X 0.5	0.615	0.385	0.171	0.5	5/16-18
5/16-18 X 1	0.615	0.385	0.171	1	5/16-18
5/16-18 X 1.5	0.615	0.385	0.171	1.5	5/16-18
5/16-18 X 2	0.615	0.385	0.171	2	5/16-18
3/8-16 X 0.5	0.687	0.43	0.187	0.5	3/8-16
3/8-16 X 1	0.687	0.43	0.187	1	3/8-16
3/8-16 X 1.5	0.687	0.43	0.187	1.5	3/8-16
3/8-16 X 2	0.687	0.43	0.187	2	3/8-16
1/2-13 X 0.5	0.75	0.468	0.203	0.5	1/2-13
1/2-13 X 1	0.75	0.468	0.203	1	1/2-13
1/2-13 X 1.5	0.75	0.468	0.203	1.5	1/2-13
1/2-13 X 2	0.75	0.468	0.203	2	1/2-13
5/16-18 X 0.75	0.615	0.385	0.171	0.75	5/16-18
1/4-20 X 0.25	0.54	0.365	0.155	0.25	1/4-20

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Knurled Head Thumb Screws

Knurled Head Thumb Screws Variations

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