7.5mm 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.

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	Pkg. Qty.		Pkg.
Corrosion-Resistant 302 Stainless Steel



	7.5	2.49	1.88	0.3	4.1	0.68	0.21	Closed	5	00000000	000000


	7.5	4.39	3.58	0.41	3.6	0.86	0.22	Closed	5	00000000	00000


	Highly-Corrosion-Resistant 316 Stainless Steel



			7.5	2	1.4	0.3	5.4	0.6	0.32	Closed	1	00000000	0000


			7.5	2	1.5	0.25	4.8	0.3	0.15	Closed	1	00000000	0000
			7.5	2	1.6	0.2	4.2	0.2	0.06	Closed	1	00000000	0000
			7.5	2.5	1.9	0.3	4.8	0.5	0.2	Closed	1	0000000	0000
			7.5	2.5	2	0.25	4.2	0.3	0.1	Closed	1	00000000	0000
			7.5	3	2.4	0.3	4.3	0.4	0.14	Closed	1	00000000	0000
			7.5	3	2.5	0.25	3.8	0.2	0.07	Closed	1	00000000	0000
			7.5	4.4	3.6	0.4	4.1	0.7	0.22	Closed	1	00000000	0000