UNIFIED-General Dimensional Data (Inches)

THREAD CODE	MIN SHEET THICKNESS	SHEET HOLE SIZE	C	D MIN THREAD DEPTH	H	MIN DISTANCE HOLE C/L TO EDGE
256	.025	.166	.165	.200	.187	.23
6256	.025	.213	.212	.200	.250	.27
440	.025	.166	.165	.220	.187	.23
6440	.025	.213	.212	.220	.250	.27
632	.025	.213	.212	.270	.250	.27
Tolerances		+.003-.000	+.000-.005		Nom.

Unified - Inches

THREAD SIZE X PITCH			TYPE STEEL STAINLESS ALUMINUM						THREAD CODE
.086-56 (#2-56)			CTSO / CTSOS / CTSOA						256 62564
Length "L" + or - .003 (style 1-2-3 see below)
.0901	.1251	.1871	.2501	.3122	.3752	.4373	.5003	.5623	.6253	.6873	.7503
.112-40 (#4-40)			CTSO / CTSOS / CTSOA						440 64404
Length "L" + or - .003 (style 1-2-3 see below)
.0901	.1251	.1871	.2501	.3122	.3752	.4372	.5003	.5623	.6253	.6873	.7503
.138-32 (#6-32)			CTSO / CTSOS / CTSOA						632
Length "L" + or - .003 (style 1-2-3 see below)
N/A	.1251	.1871	.2501	.3121	.3752	.4372	.5002	.5623	.6253	.6873	.7503

1 = Style 1     2 = Style 2     3 = Style 3     4 = Offers greater wall thickness

Style 1, 2, 3 thread code and length information (can specify in .001 increments)

THREAD CODE	LENGTH "L" STYLE 1	LENGTH "L"STYLE 2	LENGTH "L"STYLE 3
256 6256	.90 -.250	.251 - .375	.376 -.750
440 6440	.90 - .280	.281 - .450	.451 - .750
632	.120 - .350	.351 - .540	.541 - .750

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