36mm 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.

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



	36	14.1	10.9	1.6	21.21	21.78	1.4	Closed and Ground	DIN 2095, DIN 2098, DIN 17223	5	000000000	000000


	Corrosion-Resistant 302 Stainless Steel



			36	5.8	4.2	0.8	21.5	4.87	0.34	Closed	DIN 2095	5	00000000	00000


			36	14.1	10.9	1.6	14.1	25.34	1.17	Closed and Ground	DIN 2095	5	00000000	00000
			36	22.5	17.5	2.5	15.5	54.73	2.66	Closed and Ground	DIN 2095	2	00000000	00000


			Highly-Corrosion-Resistant 316 Stainless Steel



					36	5.8	4.2	0.8	23.52	4.2	0.34	Closed and Ground	—	1	00000000	0000


					36	14.1	10.9	1.6	25.171	12.7	1.18	Closed and Ground	—	1	00000000	0000

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.

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.

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







				3 mm Diameter

				36	3	0.3	780	Rockwell C42	DIN 7346, ISO 13337	50	000000000	000000


				36	3 to 3.1	0.6	1,400	Rockwell C42	DIN 1481, ISO 8752	100	000000000	00000




						4 mm Diameter

						36	4	0.5	1,700	Rockwell C42	DIN 7346, ISO 13337	25	000000000	00000


						36	4 to 4.2	0.8	2,500	Rockwell C42	ISO 8752	100	000000000	00000




								5 mm Diameter

								36	5	0.5	2,300	Rockwell C42	DIN 7346, ISO 13337	25	000000000	0000


								36	5 to 5.2	1	3,900	Rockwell C42	ISO 8752	100	000000000	00000




										6 mm Diameter

										36	6	0.75	4,000	Rockwell C42	DIN 7346, ISO 13337	25	000000000	00000


										36	6 to 6.2	1.2	5,800	Rockwell C42	ISO 8752	50	000000000	00000




												8 mm Diameter

												36	8	0.75	5,300	Rockwell C42	DIN 7346, ISO 13337	10	000000000	0000




														10 mm Diameter

														36	10	1	5,300	Rockwell C42	DIN 7346, ISO 13337	10	000000000	00000


														36	10 to 10.3	2	15,700	Rockwell C42	ISO 8752	25	000000000	00000




12 mm Diameter

36	12															1	10,700	Rockwell C42	DIN 7346, ISO 13337	5	000000000	00000




		13 mm Diameter

		36	13													1.2	14,800	Rockwell C42	DIN 7346, ISO 13337	5	000000000	00000




																16 mm Diameter

																36	16	1.5	22,000	Rockwell C42	DIN 7346, ISO 13337	1	000000000	0000




																21 mm Diameter

																36	21	2	37,700	Rockwell C42	DIN 7346, ISO 13337	1	000000000	00000


																Corrosion-Resistant 18-8 Stainless Steel







																		4 mm Diameter

																		36	4 to 4.2	0.8	Not Rated	Not Rated	DIN 1481, ISO 8752	10	000000000	0000




																		5 mm Diameter

																		36	5 to 5.2	1	Not Rated	Not Rated	DIN 1481, ISO 8752	10	000000000	0000




											6 mm Diameter

											36								6 to 6.2	1.2	Not Rated	Not Rated	DIN 1481, ISO 8752	10	000000000	00000




												10 mm Diameter

												36	10 to 10.3							2	Not Rated	Not Rated	DIN 1481, ISO 8752	1	000000000	0000