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All Category - External Hair Pin Cotters - External Hair Pin Cotters Catalog

External Hair Pin Cotters Catalog

Used to hold parts and shafts in position when the fastening can be made around an external groove.
For maximum security, the groove depth should be at least one half the diameter of the cotter stock.
A wide range of specials are available for custom applications.

Standard Materials

Steel: SAE 1065 spring steel wire to ASTM#A227
SAE 1086 spring steel wire to ASTM#A227
Stainless Steel: 302 stainless steel wire to ASTM#A313

Finish

Steel: Provided Plain Finish. Hair Pin Cotters can be provided with a mechanical zinc plating processed in house which eliminates hydrogen embrittlement. A wide range of additional coatings are available: zinc electroplating, phosphate coatings, black oxide, etc.
Stainless Steel: provided plain finish.

Material Code:

S = Spring Steel Wire
KS = Stainless Steel Wire

Item #	Diameter 'D' Fractional	Diameter 'D' Decimal	K	J	B	C	E	F	G	H	Material
Note : click on item number to submit request for quote
HPC-132	3/64	0.0468	0.020	1/64	23/64	1/16	11/64	1/64	7/64	1/8	S
HPC-200	3/64	0.0468	.020	1/64	27/64	1/16	11/64	1/64	7/64	3/16	SPRING STEEL
HPC-111	1/16	0.0625	.026	1/32	23/64	5/64	7/64	1/32	1/8	11/64	SPRING STEEL
HPC-145	1/16	0.0625	.026	1/32	9/32	3/64	3/32	3/64	11/64	1/8	SPRING STEEL
HPC-170	1/16	0.0625	.026	1/32	23/64	5/64	7/64	1/32	1/8	11/64	STAINLESS STEEL
HPC-185	1/16	0.0625	.026	1/32	25/64	5/64	7/64	1/32	5/32	13/64	SPRING STEEL
HPC-186	1/16	0.0625	.026	1/32	9/32	5/64	7/64	1/32	1/8	7/64	SPRING STEEL
HPC-196	1/16	0.0625	.020	1/32	11/32	5/64	7/64	1/32	1/8	11/64	STAINLESS STEEL
HPC-207	1/16	0.0625	.026	3/64	9/32	5/64	7/64	1/32	5/32	7/64	SPRING STEEL
HPC-115	5/64	0.0781	.026	3/64	7/16	3/32	5/32	3/64	13/64	13/64	SPRING STEEL
HPC-116	5/64	0.0781	.036	1/32	13/32	5/64	5/32	1/32	5/32	11/64	STAINLESS STEEL
HPC-118	5/64	0.0781	.040	3/64	27/64	3/32	9/64	3/64	11/64	3/16	SPRING STEEL
HPC-144	5/64	0.0781	.026	1/32	13/32	5/64	5/32	1/32	5/32	3/16	STAINLESS STEEL
HPC-180	5/64	0.0781	.035	1/32	13/32	5/64	5/32	1/32	5/32	11/64	SPRING STEEL
HPC-212	5/64	0.0781	.026	1/32	7/16	5/64	5/32	1/32	11/64	7/32	STAINLESS STEEL
HPC-113	3/32	0.0937	.032	1/32	5/8	3/32	1/4	1/16	3/16	9/32	SPRING STEEL
HPC-114	3/32	0.0937	.026	3/64	13/32	3/32	11/64	3/64	5/32	5/32	SPRING STEEL
HPC-146	3/32	0.0937	.026	3/64	11/32	1/16	1/8	1/16	13/64	5/32	SPRING STEEL
HPC-175	3/32	0.0937	.028	1/32	1/2	1/16	7/32	1/32	3/16	7/32	STAINLESS STEEL
HPC-187	3/32	0.0937	.026	3/64	3/8	3/32	11/64	3/64	1/8	1/8	SPRING STEEL
HPC-208	3/32	0.0937	.047	1/16	15/32	3/32	5/32	1/16	15/64	7/32	SPRING STEEL
HPC-225	3/32	0.0937	.051	3/64	1/2	3/32	11/64	1/16	13/64	1/4	STAINLESS STEEL
HPC-229	3/32	0.0937	.026	1/16	23/64	1/8	5/32	3/64	13/64	9/64	SPRING STEEL
HPC-117	7/64	0.1093	.047	1/16	7/16	3/32	11/64	1/16	7/32	11/64	SPRING STEEL
HPC-124	7/64	0.1093	.035	3/64	21/64	1/16	1/8	5/64	3/16	1/8	SPRING STEEL
HPC-128	7/64	0.1093	.036	3/64	1/2	3/32	11/64	1/16	13/64	1/4	STAINLESS STEEL
HPC-131	7/64	0.1093	.047	1/16	27/64	3/32	5/32	5/64	1/4	11/64	SPRING STEEL
HPC-213	7/64	0.1093	.036	3/64	5/16	1/16	1/8	5/64	3/16	1/8	STAINLESS STEEL
HPC-242	7/64	0.1093	.032	5/64	7/16	1/8	11/64	1/16	1/4	11/64	SPRING STEEL
HPC-138	1/8	0.125	.047	1/16	31/64	7/64	5/32	5/64	15/64	15/64	SPRING STEEL
HPC-198	1/8	0.125	.047	3/64	11/16	3/32	1/4	1/16	1/4	11/32	STAINLESS STEEL
HPC-199	1/8	0.125	.051	1/16	3/4	1/8	5/16	1/16	19/64	5/16	SPRING STEEL
HPC-232	1/8	0.125	.035	3/32	15/32	5/32	11/64	1/16	17/64	15/64	SPRING STEEL
HPC-120	9/64	0.1406	.035	3/64	15/32	3/32	3/16	5/64	13/64	3/16	SPRING STEEL
HPC-141	9/64	0.1406	.032	3/64	15/32	3/32	3/16	5/64	13/64	13/64	SPRING STEEL
HPC-166	9/64	0.1406	.032	3/64	15/32	3/32	3/16	5/64	15/64	3/16	STAINLESS STEEL
HPC-235	9/64	0.1406	.014	5/64	21/64	9/64	7/64	5/64	5/32	9/64	STAINLESS STEEL
HPC-123	5/32	0.1562	.051	1/16	3/4	1/8	5/16	1/16	19/64	5/16	SPRING STEEL
HPC-129	5/32	0.1562	.047	1/16	5/8	1/8	1/4	7/64	21/64	17/64	STAINLESS STEEL
HPC-142	5/32	0.1562	.026	3/64	37/64	5/64	15/64	1/16	1/4	17/64	SPRING STEEL
HPC-147	5/32	0.1562	.026	3/64	31/64	3/32	3/16	3/32	1/4	7/32	SPRING STEEL
HPC-164	5/32	0.1562	.051	1/16	3/4	1/8	5/16	1/16	5/16	5/16	STAINLESS STEEL
HPC-169	5/32	0.1562	.028	3/64	35/64	3/32	1/4	1/32	7/32	7/32	STAINLESS STEEL
HPC-188	5/32	0.1562	.051	1/16	21/32	1/8	5/16	1/16	7/32	15/64	SPRING STEEL
HPC-195	5/32	0.1562	.028	3/64	27/64	1/16	5/32	1/16	13/64	13/64	STAINLESS STEEL
HPC-220	5/32	0.1562	.028	1/16	23/64	1/16	1/8	5/64	13/64	11/64	STAINLESS STEEL
HPC-234	5/32	0.1562	.041	3/32	37/64	3/16	7/32	1/16	19/64	1/4	SPRING STEEL
HPC-215	11/64	0.1718	.026	1/16	31/64	5/64	3/16	7/64	17/64	15/64	STAINLESS STEEL
HPC-121	3/16	0.1875	.032	1/16	21/32	5/32	9/32	7/64	19/64	17/64	SPRING STEEL
HPC-122	3/16	0.1875	.047	1/16	5/8	1/8	1/4	7/64	5/16	17/64	SPRING STEEL
HPC-228	1-13/16	0.1875	.062	29/64	1-3/4	1/2	13/16	1-1/8	1-21/32	5/8	SPRING STEEL
HPC-216	13/64	0.2031	.047	7/64	21/32	5/32	17/64	9/64	13/32	17/64	SPRING STEEL
HPC-148	7/32	0.2187	.062	3/32	11/16	1/8	1/4	5/32	7/16	5/16	SPRING STEEL
HPC-179	7/32	0.2187	.062	3/32	11/16	1/8	1/4	5/32	7/16	5/16	STAINLESS STEEL
HPC-189	7/32	0.2187	.062	1/16	5/8	1/8	1/4	5/32	23/64	1/4	SPRING STEEL
HPC-221	7/32	0.2187	.032	3/32	1/2	3/32	11/64	1/8	9/32	1/4	STAINLESS STEEL
HPC-197	1/4	0.25	.036	1/8	27/32	3/16	3/8	1/8	5/16	11/32	STAINLESS STEEL
HPC-214	1/4	0.25	.026	1/8	27/32	3/16	3/8	1/8	5/16	11/32	SPRING STEEL
HPC-218	1/4	0.25	.026	1/8	35/64	3/32	15/64	5/32	9/32	15/64	SPRING STEEL
HPC-236	17/64	0.2656	.054	11/64	25/32	17/64	21/64	11/64	31/64	21/64	SPRING STEEL
HPC-140	9/32	0.2812	.062	3/32	53/64	5/32	5/16	3/16	33/64	3/8	STAINLESS STEEL
HPC-149	9/32	0.2812	.062	3/32	53/64	5/32	5/16	3/16	33/64	3/8	SPRING STEEL
HPC-174	9/32	0.2812	.035	9/64	9/16	5/32	13/64	3/16	11/32	1/4	SPRING STEEL
HPC-190	9/32	0.2812	.062	3/32	3/4	5/32	5/16	3/16	27/64	19/64	SPRING STEEL
HPC-130	19/64	0.2968	.035	3/32	27/32	3/16	3/8	3/16	25/64	11/32	SPRING STEEL
HPC-240	21/64	0.3281	.062	3/16	55/64	7/32	11/32	15/64	37/64	11/32	SPRING STEEL
HPC-126	11/32	0.3437	.035	1/8	7/8	3/16	11/32	13/64	31/64	13/32	SPRING STEEL
HPC-143	11/32	0.3437	.062	1/8	1	3/16	3/8	1/4	41/64	15/32	STAINLESS STEEL
HPC-150	11/32	0.3437	.062	1/8	1	3/16	3/8	1/4	41/64	15/32	SPRING STEEL
HPC-172	11/32	0.3437	.062	1/8	7/8	3/16	3/8	1/4	1/2	11/32	SPRING STEEL
HPC-173	11/32	0.3437	.032	3/32	9/16	3/32	15/64	7/32	5/16	1/4	STAINLESS STEEL
HPC-191	11/32	0.3437	.062	1/8	15/16	3/16	3/8	1/4	19/32	13/32	SPRING STEEL
HPC-222	11/32	0.3437	.032	1/8	5/8	1/8	1/4	1/4	3/8	9/32	STAINLESS STEEL
HPC-177	3/8	0.375	.054	9/64	13/16	1/8	23/64	19/64	13/32	11/32	STAINLESS STEEL
HPC-182	3/8	0.375	.072	5/32	1-1/16	7/32	3/8	9/32	47/64	1/2	SPRING STEEL
HPC-192	3/8	0.375	.072	5/32	7/8	7/32	3/8	9/32	17/32	5/16	SPRING STEEL
HPC-204	3/8	0.375	.062	7/32	59/64	5/16	13/32	9/32	41/64	23/64	SPRING STEEL
HPC-151	13/32	0.4062	.105	11/64	1-3/16	7/32	7/16	9/32	23/32	17/32	SPRING STEEL
HPC-165	13/32	0.4062	.091	13/64	1-3/16	15/64	7/16	1/4	37/64	35/64	SPRING STEEL
HPC-201	13/32	0.4062	.105	11/64	1-1/16	7/32	7/16	9/32	19/32	13/32	SPRING STEEL
HPC-233	13/32	0.4062	.062	3/16	1-15/16	3/32	43/64	3/16	1/2	17/32	STAINLESS STEEL
HPC-178	27/64	0.4218	.054	1/8	13/16	1/8	21/64	9/32	7/16	25/64	STAINLESS STEEL
HPC-223	7/16	0.4375	.032	3/32	11/16	3/32	19/64	17/64	13/32	5/16	STAINLESS STEEL
HPC-152	15/32	0.4687	.105	13/64	1-23/64	1/4	1/2	5/16	51/64	5/8	SPRING STEEL
HPC-211	15/32	0.4687	.080	7/32	1-5/32	9/32	15/32	11/32	51/64	15/32	SPRING STEEL
HPC-183	31/64	0.4843	.080	1/4	1-9/32	5/16	15/32	11/32	51/64	37/64	SPRING STEEL
HPC-193	31/64	0.4843	.080	1/4	1-1/8	5/16	15/32	11/32	5/8	27/64	SPRING STEEL
HPC-209	31/64	0.4843	.062	5/32	1-1/8	5/32	27/64	3/32	1/4	37/64	SPRING STEEL
HPC-181	1/2	0.5	.080	3/16	1-15/32	9/32	9/16	3/8	63/64	11/16	SPRING STEEL
HPC-203	1/2	0.5	.080	3/16	1-1/8	9/32	9/16	3/8	37/64	11/32	SPRING STEEL
HPC-227	1/2	0.5	.047	1/16	55/64	1/8	27/64	11/32	1/2	21/64	SPRING STEEL
HPC-153	17/32	0.5312	.105	3/16	1-1/2	9/32	9/16	3/8	61/64	11/16	SPRING STEEL
HPC-160	17/32	0.5312	.062	13/64	1-3/8	1/4	1/2	21/64	27/32	11/16	SPRING STEEL
HPC-231	17/32	0.5312	.062	13/64	1-7/32	1/4	1/2	21/64	43/64	17/32	SPRING STEEL
HPC-154	19/32	0.5937	.135	1/4	1-45/64	5/16	5/8	13/32	1	51/64	SPRING STEEL
HPC-184	19/32	0.5937	.080	9/32	1-13/32	3/8	17/32	7/16	27/32	39/64	SPRING STEEL
HPC-194	19/32	0.5937	.080	9/32	1-9/32	3/8	17/32	7/16	25/32	31/64	SPRING STEEL
HPC-125	39/64	0.6093	.120	15/64	1-55/64	15/32	13/16	3/8	59/64	11/16	SPRING STEEL
HPC-217	5/8	0.625	.047	1/16	61/64	1/8	15/32	7/16	45/64	3/8	SPRING STEEL
HPC-155	21/32	0.6562	.135	15/64	1-27/32	11/32	11/16	15/32	1-3/16	55/64	SPRING STEEL
HPC-219	11/16	0.6875	.109	5/32	1-13/16	19/64	13/16	7/64	21/64	3/4	SPRING STEEL
HPC-156	23/32	0.7187	.135	9/32	2	3/8	3/4	1/2	1-27/64	15/16	SPRING STEEL
HPC-157	25/32	0.7812	.177	19/64	2-3/16	13/32	13/16	9/16	1-29/64	1	SPRING STEEL
HPC-163	7/8	0.875	.080	3/32	2	3/8	15/16	7/16	59/64	51/64	SPRING STEEL
HPC-226	7/8	0.875	.062	3/32	1-63/64	3/8	15/16	1/2	57/64	51/64	SPRING STEEL
HPC-159	29/32	0.9062	.177	5/16	2-33/64	15/32	15/16	5/8	1-9/16	1-5/32	SPRING STEEL
HPC-224	29/32	0.9062	.091	3/8	1-23/32	3/8	5/8	5/8	1-1/16	13/16	SPRING STEEL
HPC-210	1-1/16	0.9375	.072	5/8	1-7/8	5/8	3/4	5/8	1	3/4	STAINLESS STEEL
HPC-230	15/16	0.9375	.062	27/64	1-5/8	1/2	11/16	7/8	1-21/64	5/8	SPRING STEEL
HPC-161	61/64	0.9531	.177	11/32	2-29/32	1/2	1-1/8	45/64	1-11/16	1-5/16	SPRING STEEL
HPC-206	1	1	.063	3/8	1-3/4	3/8	3/4	13/16	1-23/64	3/4	STAINLESS STEEL
Total: 111