7/8" Springs | McMaster-Carr

Squeeze these springs and they’ll push right back to their original length. When compressed, they apply steady pressure to keep components securely in place. Release the pressure and they snap back instantly, just like the tip of a ballpoint pen.

Spring Steel—Strong and resilient, but best suited for dry environments since moisture will cause these springs to rust.

Corrosion-Resistant 302 Stainless Steel—Won’t corrode from exposure to moisture and mild chemicals, including ammonia often found in cleaning solutions. These springs are easier to compress than steel, but can’t handle as high a load.

	OD	ID	Wire Dia.	Compressed Lg. @ Max. Load	Max. Load, lb.	Spring Rate, lbf/in	End Type	Pkg. Qty.		Pkg.
Spring Steel



	0.875"	0.18"	0.128"	0.026"	0.515"	5.4	15	Closed and Ground	5	0000000	00000


	0.875"	0.24"	0.188"	0.026"	0.361"	4.1	8	Closed and Ground	5	0000000	0000
	0.875"	0.3"	0.256"	0.022"	0.182"	2	3	Closed and Ground	5	0000000	0000
	0.875"	0.36"	0.296"	0.032"	0.373"	5	10	Closed and Ground	5	0000000	0000
	0.875"	0.42"	0.326"	0.047"	0.421"	12	28	Closed and Ground	5	0000000	0000
	0.875"	0.48"	0.354"	0.063"	0.497"	24	65	Closed and Ground	5	00000000	0000
	0.875"	0.48"	0.37"	0.055"	0.438"	16	38	Closed and Ground	5	00000000	0000
	0.875"	0.48"	0.39"	0.045"	0.365"	9.7	19	Closed and Ground	5	00000000	0000
	0.875"	0.48"	0.404"	0.038"	0.304"	6	11	Closed and Ground	5	0000000	0000
	0.875"	0.6"	0.51"	0.045"	0.317"	6.7	12	Closed and Ground	5	00000000	0000
	0.875"	0.72"	0.576"	0.072"	0.429"	21	48	Closed and Ground	5	00000000	0000


	0.875"	0.875"	0.693"	0.091"	0.595"	25	89	Closed	12	00000000	0000


	Corrosion-Resistant 302 Stainless Steel



			0.875"	0.18"	0.128"	0.026"	0.597"	3.6	13	Closed and Ground	5	0000000	0000


			0.875"	0.24"	0.188"	0.026"	0.328"	3.8	7	Closed and Ground	5	000000	0000
			0.875"	0.3"	0.256"	0.022"	0.339"	1.4	2.6	Closed and Ground	5	0000000	0000
			0.875"	0.36"	0.296"	0.032"	0.496"	3.3	8.7	Closed and Ground	5	0000000	0000
			0.875"	0.42"	0.326"	0.047"	0.522"	8.6	24	Closed and Ground	5	0000000	0000
			0.875"	0.48"	0.354"	0.063"	0.576"	16	57	Closed and Ground	5	00000000	0000
			0.875"	0.48"	0.37"	0.055"	0.524"	11	33	Closed and Ground	5	00000000	0000
			0.875"	0.48"	0.39"	0.045"	0.476"	6.6	17	Closed and Ground	5	00000000	0000
			0.875"	0.48"	0.404"	0.038"	0.426"	4.1	9.1	Closed and Ground	5	0000000	0000
			0.875"	0.6"	0.51"	0.045"	0.357"	5.4	10	Closed and Ground	5	00000000	0000
			0.875"	0.72"	0.576"	0.072"	0.475"	16	42	Closed and Ground	5	00000000	0000


			0.875"	0.875"	0.693"	0.091"	0.585"	22	77	Closed	6	00000000	0000

Extension Springs

The farther you stretch these springs, the harder they pull to bring the two ends back together. They're commonly used to tension cable, return an air cylinder to its starting point, or hold a door closed.

Loop End—The most secure attachment method. With fully closed loops, there's no risk of slipping off.

Hook End—Hook into closed holes, such as hanger bolt eyes. These springs work best when kept under tension, as they're more likely to slip off than loop-end springs when tension is released. Also known as machine hook ends.

Spring Steel—Strong and resilient, but best suited for dry environments since moisture will cause these springs to rust.

Corrosion-Resistant 302 Stainless Steel—Won’t corrode from exposure to moisture and mild chemicals, including ammonia often found in cleaning solutions. These springs are easier to extend than steel, but can’t handle as high a load.

Highly Corrosion-Resistant 316 Stainless Steel—Our most corrosion-resistant stainless steel springs won't degrade when exposed to salt water and harsh chemicals. They're easier to extend than steel, but can’t handle as high a load.

Minimum Load—The amount of force required to start extending the spring.

Maximum Load—The amount of force required to fully extend the spring.

					Load, lb.
	Lg.	OD	Wire Dia.	Extended Lg. @ Max. Load	Min.	Max.	Spring Rate, lbf/in	Pkg. Qty.		Pkg.
Loop End







				Spring Steel

				0.875"	0.094"	0.01"	2.33"	0.05	0.6	0.3	5	00000000	000000


				0.875"	0.094"	0.012"	1.82"	0.1	1	1	5	00000000	00000
				0.875"	0.094"	0.014"	1.49"	0.17	1.5	2.2	5	0000000	00000
				0.875"	0.12"	0.016"	1.62"	0.2	1.6	2	5	00000000	00000
				0.875"	0.12"	0.02"	1.29"	0.3	3	6.7	5	00000000	00000
				0.875"	0.12"	0.022"	1.19"	0.35	3.89	11.4	5	00000000	00000
				0.875"	0.125"	0.014"	1.531"	0.15	0.76	0.93	12	00000000	00000
				0.875"	0.125"	0.018"	1.179"	0.41	1.52	3.65	12	00000000	00000
				0.875"	0.18"	0.018"	2.075"	0.14	1.55	1.2	3	0000000	0000
				0.875"	0.18"	0.022"	1.61"	0.2	2.6	3.4	5	00000000	00000
				0.875"	0.18"	0.024"	1.47"	0.31	3.45	5.3	5	00000000	00000


				0.875"	0.18"	0.026"	1.36"	0.4	4.2	8.2	5	00000000	00000
				0.875"	0.18"	0.029"	1.235"	0.52	5.82	14.7	3	0000000	0000
				0.875"	0.18"	0.031"	1.18"	0.6	6.8	21.1	5	00000000	00000
				0.875"	0.18"	0.034"	1.11"	0.81	8.97	35	5	00000000	00000
				0.875"	0.188"	0.016"	1.907"	0.11	0.75	0.62	12	00000000	00000
				0.875"	0.188"	0.02"	1.424"	0.28	1.41	2.06	12	00000000	00000
				0.875"	0.24"	0.018"	2.675"	0.11	1.18	0.6	3	0000000	0000
				0.875"	0.24"	0.022"	2"	0.19	2.07	1.7	5	00000000	00000
				0.875"	0.24"	0.026"	1.64"	0.3	3.3	4	5	00000000	00000
				0.875"	0.24"	0.029"	1.465"	0.4	4.5	7	3	00000000	0000


				0.875"	0.24"	0.031"	1.38"	0.5	5.3	9.9	5	00000000	00000
				0.875"	0.24"	0.034"	1.26"	0.65	7	16	5	00000000	00000
				0.875"	0.24"	0.037"	1.24"	1	9.6	24	1	00000000	0000
				0.875"	0.24"	0.041"	1.09"	1	13	55	1	00000000	0000
				0.875"	0.359"	0.031"	1.66"	0.3	4.1	4.9	1	00000000	0000
				0.875"	0.36"	0.031"	1.4"	0.33	3.69	6.3	5	00000000	00000




						Corrosion-Resistant 302 Stainless Steel

						0.875"	0.12"	0.016"	1.62"	0.17	1.33	1.666	5	00000000	00000


						0.875"	0.12"	0.02"	1.29"	0.25	2.5	5.581	5	00000000	00000
						0.875"	0.125"	0.014"	1.47"	0.15	0.63	0.8	3	000000000	00000
						0.875"	0.125"	0.018"	1.15"	0.41	1.29	3.18	3	000000000	00000
						0.875"	0.18"	0.018"	2.075"	0.12	1.35	1.04	3	0000000	0000
						0.875"	0.18"	0.02"	1.81"	0.16	1.73	1.666	5	000000	00000
						0.875"	0.18"	0.024"	1.47"	0.26	2.87	4.415	5	00000000	00000
						0.875"	0.18"	0.029"	1.235"	0.45	5.06	12.77	3	0000000	0000
						0.875"	0.18"	0.031"	1.18"	0.5	5.66	17.576	5	00000000	00000
						0.875"	0.188"	0.02"	1.4"	0.28	1.2	1.76	3	000000000	00000
						0.875"	0.24"	0.018"	2.675"	0.1	1.03	0.52	3	0000000	0000


						0.875"	0.24"	0.022"	2"	0.16	1.72	1.416	5	00000000	00000
0.875"						0.24"	0.026"	1.64"	0.25	2.75	3.332	5	00000000	00000
0.875"	0.24"					0.029"	1.465"	0.35	3.91	6.08	3	00000000	0000
0.875"	0.24"					0.031"	1.38"	0.42	4.41	8.247	5	00000000	00000
0.875"	0.24"					0.034"	1.26"	0.54	5.83	13.328	5	00000000	00000
0.875"	0.36"					0.031"	1.4"	0.27	3.07	5.248	5	0000000	00000




		Highly Corrosion-Resistant 316 Stainless Steel

		0.875"	0.063"			0.008"	1.267"	0.03	0.15	0.38	1	00000000	0000


		0.875"	0.063"			0.009"	1.153"	0.05	0.21	0.72	1	00000000	0000
		0.875"	0.078"			0.008"	1.537"	0.03	0.13	0.192	1	00000000	0000
		0.875"	0.078"			0.011"	1.198"	0.07	0.36	1.062	1	00000000	0000
		0.875"	0.188"			0.014"	1.933"	0.03	0.28	0.28	1	00000000	0000
		0.875"	0.188"			0.016"	1.619"	0.07	0.42	0.57	1	00000000	0000
		0.875"	0.24"			0.018"	1.69"	0.09	0.49	0.5	2	00000000	00000
		0.875"	0.24"			0.031"	1.15"	0.42	2.62	8.247	2	00000000	00000
		0.875"	0.36"			0.031"	1.14"	0.27	1.67	5.248	2	00000000	00000


		Hook End







								Corrosion-Resistant 302 Stainless Steel

								0.875"	0.234"	0.032"	1.24"	1	5	12.232	1	00000000	0000


								0.875"	0.25"	0.032"	1.36"	0.8	4.7	8.434	1	00000000	0000
								0.875"	0.281"	0.031"	1.38"	0.6	3.7	5.797	1	00000000	0000
								0.875"	0.312"	0.028"	1.69"	0.3	2.4	2.631	1	00000000	0000




										Highly Corrosion-Resistant 316 Stainless Steel

				0.875"						0.125"	0.022"	1.215"	0.37	1.37	8.497	2	00000000	00000


				0.875"	0.188"					0.022"	1.565"	0.25	0.88	2.666	2	00000000	00000
				0.875"	0.188"					0.024"	1.505"	0.33	1.19	3.998	2	00000000	00000
				0.875"	0.188"					0.029"	1.265"	0.62	2.03	10.912	2	00000000	00000
				0.875"	0.188"					0.031"	1.195"	0.71	2.45	15.827	2	00000000	00000
				0.875"	0.188"					0.034"	1.135"	0.75	3.15	25.823	2	00000000	00000
				0.875"	0.25"					0.022"	2.145"	0.17	0.74	1.25	2	00000000	00000
				0.875"	0.25"					0.026"	1.645"	0.33	1.09	2.916	2	00000000	00000
				0.875"	0.25"					0.029"	1.505"	0.46	1.51	4.998	2	00000000	00000
				0.875"	0.25"					0.031"	1.385"	0.58	1.82	7.33	2	00000000	00000
				0.875"	0.25"					0.034"	1.315"	0.71	2.38	11.246	2	00000000	00000

Precision Compression Springs

Count on these springs when accuracy and repeatability are a must. All are made to tight OD and spring-rate tolerances. They’re often used for metering, measuring, and positioning jobs that require steady pressure or exact movement.

Spring Steel—Strong and resilient, but best suited for dry environments since moisture will cause these springs to rust.

Highly Corrosion-Resistant 316 Stainless Steel—Our most corrosion-resistant stainless steel springs won't degrade when exposed to salt water and harsh chemicals. They're easier to compress than steel, but can’t handle as high a load.

	OD	OD Tolerance	ID	Wire Dia.	Compressed Lg. @ Max. Load	Max. Load, lb.	Spring Rate, lbf/in	Spring Rate Tolerance, lbf/in	End Type	Pkg. Qty.		Pkg.
Spring Steel



	0.875"	0.36"	-0.004" to 0.004"	0.296"	0.032"	0.375"	5	10	-0.5 to 0.5	Closed and Ground	5	0000000	00000


	0.875"	0.42"	-0.004" to 0.004"	0.326"	0.047"	0.421"	12	28	-1.4 to 1.4	Closed and Ground	5	0000000	0000
	0.875"	0.48"	-0.004" to 0.004"	0.354"	0.063"	0.497"	24	65	-3.25 to 3.25	Closed and Ground	3	0000000	0000
	0.875"	0.48"	-0.004" to 0.004"	0.404"	0.038"	0.304"	6	10.5	-0.53 to 0.53	Closed and Ground	3	0000000	0000


	Corrosion-Resistant 302 Stainless Steel



			0.875"	0.48"	-0.004" to 0.004"	0.354"	0.063"	0.578"	16	56.49	-2.83 to 2.83	Closed and Ground	3	0000000	0000


			0.875"	0.48"	-0.004" to 0.004"	0.404"	0.038"	0.425"	4.1	9.12	-0.46 to 0.46	Closed and Ground	3	0000000	0000


			Highly Corrosion-Resistant 316 Stainless Steel



					0.875"	0.48"	-0.014" to 0.014"	0.354"	0.063"	0.616"	14	56.49	-2.83 to 2.83	Closed and Ground	3	00000000	00000


					0.875"	0.48"	-0.014" to 0.014"	0.404"	0.038"	0.491"	3.5	9.12	-0.46 to 0.46	Closed and Ground	3	00000000	00000

Extension Spring Stud Anchors

A black-oxide finish provides these steel anchors with mild corrosion resistance. Attach an extension spring to an anchor and then thread the anchor into your part for a secure connection.

	Thread
	Size	Min. Lg.	Spacing	Lg.	Dia.	Hole Dia.		Each
Black-Oxide Steel



		8-32	5/8"	Coarse	7/8"	0.164"	0.1"	0000000	00000


		8-36	5/8"	Fine	7/8"	0.164"	0.1"	0000000	0000

Corrosion-Resistant Extension Spring Stud Anchors

These stainless steel stud anchors offer excellent corrosion resistance. Attach an extension spring to an anchor and then thread the anchor into your part for a secure connection.

	Thread
	Size	Min. Lg.	Spacing	Lg.	Dia.	Hole Dia.		Each
18-8 Stainless Steel



		8-32	5/8"	Coarse	7/8"	0.164"	0.1"	000000000	00000


		8-36	5/8"	Fine	7/8"	0.164"	0.1"	000000000	0000

Swiveling Extension Spring Stud Anchors

A black-oxide finish provides these steel anchors with mild corrosion resistance. The head swivels 360° so the spring stays straight and properly coiled. Attach an extension spring to an anchor and then thread the anchor into your part for a secure connection. To make tightening easier, anchors have a hex socket on the bottom and wrench flats at the top of the threads.

	Thread
	Size	Min. Lg.	Spacing	Lg.	Dia.	Hole Dia.	Hex Size		Each
Black-Oxide Steel



		8-32	5/8"	Coarse	7/8"	0.164"	0.1"	0.05"	000000000	000000

Corrosion-Resistant Swiveling Extension Spring Stud Anchors

These stainless steel stud anchors offer excellent corrosion resistance. The head swivels 360° so the spring stays straight and properly coiled. Attach an extension spring to an anchor and then thread the anchor into your part for a secure connection. To make tightening easier, anchors have a hex socket on the bottom and wrench flats at the top of the threads.

	Thread
	Size	Min. Lg.	Spacing	Lg.	Dia.	Hole Dia.	Hex Size		Each
18-8 Stainless Steel



		8-32	5/8"	Coarse	7/8"	0.164"	0.1"	0.05"	000000000	000000

Slotted Spring Pins


	End View

Squeeze these pins into holes and they expand slightly, creating tension to hold parts in place. They are often used as hinge pins and as fasteners for springs and power transmission components. An alternative to dowel pins, they're lighter in weight with a hollow center and don’t need a precise hole. Also known as roll pins.

Spring Steel—These pins won't deform from stress and vibration. Although they're stronger than stainless steel, they're best for dry environments since moisture will cause them to rust.

Zinc-Plated Spring Steel—These pins withstand occasional exposure to moisture. However, since friction from moving parts can wear away the finish, they're not ideal for wet environments. While not nearly as corrosion resistant as stainless steel, they are stronger and won’t deform under stress.

Black-Phosphate-Coated Spring Steel—The dark coating creates both a finished appearance and a barrier against rust that's more durable than clear zinc plating. Stronger than stainless steel, these pins won't deform from stress and vibration.

Corrosion-Resistant 18-8 Stainless Steel—The choice for wet and outdoor environments, these pins resist rusting. They are strong enough to join most components but won't withstand extreme stress and vibration as well as steel.

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these pins won't degrade when exposed to harsh weather, salt water, and most chemicals. They're strong enough to join most components but won't withstand extreme stress and vibration as well as steel.

Wear-Resistant 400 Series Stainless Steel—Our most wear-resistant stainless steel pins, these are good for pivoting parts that create a lot of friction. They hold up in environments that experience occasional moisture, but they're not as corrosion resistant as 18-8 and 316 stainless steel.

	Lg.	For Hole Dia.	Wall Thk.	Double Shear Breaking Strength, lbf	Min. Hardness	Specs. Met	Mil. Spec.	Pkg. Qty.		Pkg.
Spring Steel







				1/16" Diameter

				7/8"	0.062" to 0.065"	0.012"	430	Rockwell C43	ASME B18.8.2	—	100	000000000	00000




						5/64" Diameter

						7/8"	0.078" to 0.081"	0.018"	800	Rockwell C43	ASME B18.8.2	—	250	000000000	00000




								3/32" Diameter

								7/8"	0.094" to 0.097"	0.022"	1,100	Rockwell C43	ASME B18.8.2	—	250	000000000	00000




										1/8" Diameter

										7/8"	0.125" to 0.129"	0.028"	1,800	Rockwell C43	ASME B18.8.2	—	250	000000000	00000




												5/32" Diameter

												7/8"	0.156" to 0.16"	0.032"	2,700	Rockwell C43	ASME B18.8.2	—	100	000000000	0000




														3/16" Diameter

														7/8"	0.187" to 0.192"	0.04"	4,100	Rockwell C43	ASME B18.8.2	—	250	000000000	00000




																1/4" Diameter

																7/8"	0.25" to 0.256"	0.048"	7,000	Rockwell C43	ASME B18.8.2	—	100	000000000	00000


																Zinc-Plated Spring Steel







																				1/16" Diameter

7/8"																				0.062" to 0.065"	0.012"	430	Rockwell C43	ASME B18.8.2	—	100	000000000	0000




		5/64" Diameter

		7/8"	0.078" to 0.081"																	0.018"	800	Rockwell C43	ASME B18.8.2	—	250	000000000	00000




																				3/32" Diameter

				7/8"	0.094" to 0.097"															0.022"	1,100	Rockwell C43	ASME B18.8.2	—	250	000000000	00000




																				1/8" Diameter

						7/8"	0.125" to 0.129"													0.028"	1,800	Rockwell C43	ASME B18.8.2	—	250	000000000	00000




																				5/32" Diameter

								7/8"	0.156" to 0.16"											0.032"	2,700	Rockwell C43	ASME B18.8.2	—	100	000000000	0000




																				3/16" Diameter

										7/8"	0.187" to 0.192"									0.04"	4,100	Rockwell C43	ASME B18.8.2	—	100	000000000	00000




																				1/4" Diameter

												7/8"	0.25" to 0.256"							0.048"	7,000	Rockwell C43	ASME B18.8.2	—	100	000000000	00000


												Black-Phosphate-Coated Spring Steel







																				1/4" Diameter

																				7/8"	0.25" to 0.256"	0.048"	7,700	Rockwell C46	—	MS16562-157	10	000000000	00000


																Corrosion-Resistant 18-8 Stainless Steel







																				1/16" Diameter

7/8"	0.062" to 0.065"																			0.012"	250	Not Rated	ASME B18.8.2	—	100	000000000	00000




																				5/64" Diameter

		7/8"	0.078" to 0.081"																	0.018"	450	Not Rated	ASME B18.8.2	—	100	000000000	00000




																				3/32" Diameter

				7/8"	0.094" to 0.097"															0.022"	650	Not Rated	ASME B18.8.2	—	100	000000000	0000




																				1/8" Diameter

						7/8"	0.125" to 0.129"													0.028"	1,000	Not Rated	ASME B18.8.2	—	100	000000000	00000




																				5/32" Diameter

								7/8"	0.156" to 0.16"											0.032"	1,600	Not Rated	ASME B18.8.2	—	100	000000000	00000




																				3/16" Diameter

										7/8"	0.187" to 0.192"									0.04"	2,400	Not Rated	ASME B18.8.2	—	50	000000000	00000




																				1/4" Diameter

												7/8"								0.25" to 0.256"	0.048"	4,100	Not Rated	ASME B18.8.2	—	50	000000000	00000


												Highly Corrosion-Resistant 316 Stainless Steel







																				3/32" Diameter

																				7/8"	0.094" to 0.097"	0.022"	600	Not Rated	ASME B18.8.2	—	50	000000000	00000




																				1/8" Diameter

																		7/8"	0.125" to 0.129"	0.028"	1,000	Not Rated	ASME B18.8.2	—	25	000000000	0000




5/32" Diameter

7/8"	0.156" to 0.16"																			0.032"	1,600	Not Rated	ASME B18.8.2	—	25	000000000	0000




																				3/16" Diameter

		7/8"	0.187" to 0.192"																	0.04"	2,400	Not Rated	ASME B18.8.2	—	10	000000000	0000




																				1/4" Diameter

				7/8"	0.25" to 0.256"															0.048"	4,100	Not Rated	ASME B18.8.2	—	10	000000000	0000


				Wear-Resistant 400 Series Stainless Steel







																				1/16" Diameter

																				7/8"	0.062" to 0.065"	0.012"	430	Rockwell C43	ASME B18.8.2	—	100	000000000	00000




																				5/64" Diameter

																				7/8"	0.078" to 0.081"	0.018"	800	Rockwell C43	ASME B18.8.2	—	100	000000000	00000




																				3/32" Diameter

																				7/8"	0.094" to 0.097"	0.022"	1,100	Rockwell C43	ASME B18.8.2	—	100	000000000	00000




																				1/8" Diameter

														7/8"	0.125" to 0.129"					0.028"	1,800	Rockwell C43	ASME B18.8.2	—	100	000000000	00000




																				5/32" Diameter

																7/8"	0.156" to 0.16"			0.032"	2,700	Rockwell C43	ASME B18.8.2	—	100	000000000	00000




																				3/16" Diameter

																		7/8"	0.187" to 0.192"	0.04"	4,100	Rockwell C43	ASME B18.8.2	—	50	000000000	0000




1/4" Diameter

7/8"	0.25" to 0.256"																			0.048"	7,000	Rockwell C43	ASME B18.8.2	—	50	000000000	00000

Heavy Duty Coiled Spring Pins

End View

Made of thicker material than our other coiled spring pins, these are about 30% stronger with the same resilience to vibration and shock. They are often used in power transmission, automation, and other assemblies with constant motion and sudden starts and stops. Because of their spiral shape, pins flex to conform to holes that aren’t perfectly round.

Carbon Steel—These pins won't deform from stress and vibration. Although they're stronger than stainless steel, they're best for dry environments since moisture will cause them to rust.

	Min. Hardness	Specs. Met	Pkg. Qty.		Pkg.
Carbon Steel







	1/8" Diameter

	7/8"	0.124" to 0.129"	2,000	Rockwell C42	ASME B18.8.2	100	000000000	000000




			3/16" Diameter

			7/8"	0.185" to 0.192"	4,500	Rockwell C42	ASME B18.8.2	50	000000000	00000


			Wear-Resistant 400 Series Stainless Steel







							1/8" Diameter

							7/8"	0.124" to 0.129"	2,000	Rockwell C46	ASME B18.8.2	25	000000000	00000

Coiled Spring Pins

End View

The best spring pins for joining parts exposed to vibration and shock. They're often used in power transmission, automation, and other assemblies with constant motion and sudden starts and stops. Because of their spiral shape, they flex to conform to holes that aren’t perfectly round.

Spring Steel—These pins won't deform from stress and vibration. Although they're stronger than stainless steel, they're best for dry environments since moisture will cause them to rust.

	Min. Hardness	Specs. Met	Pkg. Qty.		Pkg.
Spring Steel







	1/8" Diameter

	7/8"	0.124" to 0.129"	1,400	Rockwell C42	ASME B18.8.2	100	000000000	000000




			5/32" Diameter

			7/8"	0.155" to 0.160"	2,200	Rockwell C42	ASME B18.8.2	100	000000000	00000




					3/16" Diameter

					7/8"	0.185" to 0.192"	3,100	Rockwell C42	ASME B18.8.2	50	000000000	00000


					Corrosion-Resistant 18-8 Stainless Steel







									1/8" Diameter

									7/8"	0.125" to 0.129"	1,100	Not Rated	ASME B18.8.2	25	000000000	00000




											3/16" Diameter

											7/8"	0.187" to 0.192"	2,400	Not Rated	ASME B18.8.2	10	000000000	00000


											Wear-Resistant 400 Series Stainless Steel







															1/8" Diameter

															7/8"	0.124" to 0.129"	1,400	Rockwell C46	ASME B18.8.2	25	000000000	0000




																	3/16" Diameter

																	7/8"	0.185" to 0.192"	3,100	Rockwell C46	ASME B18.8.2	10	000000000	00000