6-32 Plungers | McMaster-Carr

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30 Products

Long-Nose Spring Plungers

Lock heavy moving parts securely in place. Often used in indexing applications, these have a longer nose than ball-nose spring plungers to withstand greater side forces without disengaging. The nose compresses when a part presses against it, and then pops out into deep notches or grooves for a strong hold.

Spring plungers are available with or without a threadlocker. Those with a threadlocker won't wiggle loose from vibration. Spring plungers without a threadlocker are easier to remove.

Steel Nose—The strongest, most wear-resistant noses, these won't deform from stress and vibration. Steel is best for dry environments, however, since moisture will cause it to rust.

18-8 Stainless Steel Nose—The choice for wet and outdoor environments, 18-8 stainless steel resists rusting. It's strong enough for most jobs, but won't withstand stress and vibration as well as steel.

316 Stainless Steel Nose—With the best corrosion resistance of all, 316 stainless steel stands up to harsh weather, salt water, and chemicals. The nose is strong enough for most jobs, but won't withstand stress and vibration as well as steel.

Brass Nose—Similar to 18-8 stainless steel, brass is corrosion resistant enough to stand up to wet environments. Since brass is softer than other metals, these noses are less likely to dent surfaces, however, they could deform under high stress.

Acetal Nose—The best plastic for damp and wet environments, acetal won't swell or lose strength if exposed to moisture. These noses are extra soft to avoid scratching delicate surfaces. They are best for use on soft materials, such as aluminum.

	Spring Plungers											Spring Plunger Drivers
		Nose		Nose Force, lbf		Body		Drive Style
	Thread Size	Extended Lg.	Dia.	Extended	Compressed	Material	Lg.	Front	Back		Each		Each
Steel Nose



		6-32	0.036"	0.046"	0.5	1.5	Black-Oxide Steel	0.38"	Spring Plunger Driver	Slotted	3126A69	00000	3382A11	00000
		6-32	0.063"	0.045"	0.5	1.5	Black-Oxide Steel	0.53"	—	Hex	8495A19	0000	———	0
		6-32	0.063"	0.045"	0.5	1.5	Black-Oxide Steel	0.53"	Spring Plunger Driver	—	3126A1	0000	3382A11	0000
		6-32	0.063"	0.045"	1	1.6	Black-Oxide Steel	0.38"	Spring Plunger Driver	—	3126A2	0000	3382A11	0000
		6-32	0.063"	0.045"	1	1.6	Black-Oxide Steel	0.53"	—	Hex	8495A12	0000	———	0
		6-32	0.063"	0.045"	1.5	4.5	Black-Oxide Steel	0.53"	—	Hex	8495A11	0000	———	0
		6-32	0.063"	0.045"	1.5	4.5	Black-Oxide Steel	0.53"	Spring Plunger Driver	—	3126A3	0000	3382A11	0000
		6-32	0.063"	0.046"	0.5	3.5	Black-Oxide Steel	0.38"	Spring Plunger Driver	—	3126A75	0000	3382A11	0000


		18-8 Stainless Steel Nose



				6-32	0.063"	0.045"	0.5	1.5	18-8 Stainless Steel	0.53"	—	Hex	8476A41	0000	———	0
				6-32	0.063"	0.045"	0.5	1.5	18-8 Stainless Steel	0.53"	Spring Plunger Driver	—	84975A36	0000	3382A11	0000
				6-32	0.063"	0.045"	0.5	1.5	Black-Oxide Steel	0.53"	Spring Plunger Driver	—	8490A68	0000	3382A11	0000
				6-32	0.063"	0.045"	1	1.6	18-8 Stainless Steel	0.38"	Spring Plunger Driver	—	84975A37	0000	3382A11	0000
				6-32	0.063"	0.045"	1	1.6	18-8 Stainless Steel	0.53"	—	Hex	8476A33	0000	———	0
				6-32	0.063"	0.045"	1	1.6	Black-Oxide Steel	0.38"	Spring Plunger Driver	—	8490A55	0000	3382A11	0000
				6-32	0.063"	0.045"	1.5	4.5	18-8 Stainless Steel	0.53"	—	Hex	8476A32	0000	———	0
				6-32	0.063"	0.045"	1.5	4.5	18-8 Stainless Steel	0.53"	Spring Plunger Driver	—	84975A39	0000	3382A11	0000
				6-32	0.063"	0.045"	1.5	4.5	Black-Oxide Steel	0.53"	Spring Plunger Driver	—	8490A54	0000	3382A11	0000


				316 Stainless Steel Nose



						6-32	0.063"	0.045"	1	1.6	316 Stainless Steel	0.38"	Spring Plunger Driver	—	8688A11	00000	3382A11	0000


						Brass Nose



								6-32	0.063"	0.045"	1	1.6	Brass	0.38"	Spring Plunger Driver	—	8689A11	00000	3382A11	0000


								Acetal Nose



										6-32	0.036"	0.046"	0.5	1.5	Black-Oxide Steel	0.38"	Spring Plunger Driver	Slotted	8499A52	0000	3382A11	0000
										6-32	0.063"	0.045"	0.5	1.5	18-8 Stainless Steel	0.53"	—	Hex	2177A41	00000	———	0
										6-32	0.063"	0.045"	0.5	1.5	Black-Oxide Steel	0.53"	—	Hex	2467A34	0000	———	0
										6-32	0.063"	0.045"	0.5	1.5	Black-Oxide Steel	0.53"	Spring Plunger Driver	—	8499A46	0000	3382A11	0000
										6-32	0.063"	0.045"	1	1.6	18-8 Stainless Steel	0.53"	—	Hex	2177A63	0000	———	0
										6-32	0.063"	0.045"	1	1.6	Black-Oxide Steel	0.53"	—	Hex	2467A32	0000	———	0
										6-32	0.063"	0.045"	1.5	4.5	18-8 Stainless Steel	0.53"	—	Hex	2177A42	00000	———	0
										6-32	0.063"	0.045"	1.5	4.5	Black-Oxide Steel	0.53"	—	Hex	2467A31	0000	———	0
										6-32	0.063"	0.045"	1.5	4.5	Black-Oxide Steel	0.53"	Spring Plunger Driver	—	8499A47	00000	3382A11	0000
										6-32	0.063"	0.046"	0.5	3.5	Black-Oxide Steel	0.38"	Spring Plunger Driver	—	8499A48	0000	3382A11	0000

Spring Plunger Drivers

Install spring plungers from the nose end without depressing the nose.

	For Spring Plunger Nose Type		Each
Steel



	6-32	Ball, Long	3382A11	00000