Steel with Delrin Ball

Steel bodies are made of 12L14 material with a black oxide finish.

Delrin® balls prevent marring of aluminum, brass or other soft materials.

The locking element holds the plunger body securely in place without the need for lock nuts or other devices. We recommend a 90 degree countersink 1/32″ larger than the major diameter of the mating thread to prevent damaging the element.

Plungers may be ordered with or without the locking element. Plungers without the element are the same price, but are considered “specials” and cannot be returned. We recommend using without the locking element for applications in aluminum.

All part numbers ending with a “P” do NOT have a locking element.

To prevent possible spring damage, use of a Northwestern Wrench is recommended when installing from plunger end.

Part #	Projection	Ball Diameter	Body Length	Thread Sizes	End Pressure Start (lbs.)	End Pressure Full (lbs.)	Hex Diameter	Color Code	Materials	Pressures	Locking Element	Buy	hf:tax:projection	hf:tax:ball_diameter	hf:tax:body_length	hf:tax:thread	hf:tax:end_pressure_lbs_start	hf:tax:end_pressure_lbs_full	hf:tax:hex_diameter	hf:tax:color_code	hf:tax:material	hf:tax:pressure	hf:tax:locking_element
10255HP	.025	.093	9/16	10-32	0.5	1.5	5/64	Plain	Steel	Light	No	Steel Body - Delrin Ball quantity	025	093	9-16	10-32	0-5	1-5	5-64	plain	steel	light	no
10256HP	.025	.093	9/16	10-32	1.5	3	5/64	Black	Steel	Medium	No	Steel Body - Delrin Ball quantity	025	093	9-16	10-32	1-5	3	5-64	black	steel	medium	no
10257HP	.025	.093	9/16	10-32	2	5	5/64	Yellow	Steel	Heavy	No	Steel Body - Delrin Ball quantity	025	093	9-16	10-32	2	5	5-64	yellow	steel	heavy	no
10258HP	.035	.125	43/64	1/4-20	2	4	5/64	Plain	Steel	Light	No	Steel Body - Delrin Ball quantity	035	125	43-64	1-4-20	2	4	5-64	plain	steel	light	no
10259HP	.035	.125	43/64	1/4-20	3	7	5/64	Black	Steel	Medium	No	Steel Body - Delrin Ball quantity	035	125	43-64	1-4-20	3	7	5-64	black	steel	medium	no
10260HP	.035	.125	43/64	1/4-20	4	12	5/64	Yellow	Steel	Heavy	No	Steel Body - Delrin Ball quantity	035	125	43-64	1-4-20	4	12	5-64	yellow	steel	heavy	no
10261HP	.040	.156	23/32	5/16-18	2	4.5	3/32	Plain	Steel	Light	No	Steel Body - Delrin Ball quantity	040	156	23-32	5-16-18	2	4-5	3-32	plain	steel	light	no
10262HP	.040	.156	23/32	5/16-18	4	9	3/32	Black	Steel	Medium	No	Steel Body - Delrin Ball quantity	040	156	23-32	5-16-18	4	9	3-32	black	steel	medium	no
10263HP	.040	.156	23/32	5/16-18	6	17	3/32	Yellow	Steel	Heavy	No	Steel Body - Delrin Ball quantity	040	156	23-32	5-16-18	6	17	3-32	yellow	steel	heavy	no
10264HP	.048	.187	13/16	3/8-16	2.5	5	5/32	Plain	Steel	Light	No	Steel Body - Delrin Ball quantity	048	187	13-16	3-8-16	2-5	5	5-32	plain	steel	light	no
10265HP	.048	.187	13/16	3/8-16	5	10	5/32	Black	Steel	Medium	No	Steel Body - Delrin Ball quantity	048	187	13-16	3-8-16	5	10	5-32	black	steel	medium	no
10266HP	.048	.187	13/16	3/8-16	6	21	5/32	Yellow	Steel	Heavy	No	Steel Body - Delrin Ball quantity	048	187	13-16	3-8-16	6	21	5-32	yellow	steel	heavy	no
10267HP	.072	.281	1-3/64	1/2-13	3	6	7/32	Plain	Steel	Light	No	Steel Body - Delrin Ball quantity	072	281	1-3-64	1-2-13	3	6	7-32	plain	steel	light	no
10268HP	.072	.281	1-3/64	1/2-13	6	12	7/32	Black	Steel	Medium	No	Steel Body - Delrin Ball quantity	072	281	1-3-64	1-2-13	6	12	7-32	black	steel	medium	no
10269HP	.072	.281	1-3/64	1/2-13	6	30	7/32	Yellow	Steel	Heavy	No	Steel Body - Delrin Ball quantity	072	281	1-3-64	1-2-13	6	30	7-32	yellow	steel	heavy	no
10270HP	.096	.375	1-15/64	5/8-11	4.5	9	1/4	Plain	Steel	Light	No	Steel Body - Delrin Ball quantity	096	375	1-15-64	5-8-11	4-5	9	1-4	plain	steel	light	no
10271HP	.096	.375	1-15/64	5/8-11	9	18	1/4	Black	Steel	Medium	No	Steel Body - Delrin Ball quantity	096	375	1-15-64	5-8-11	9	18	1-4	black	steel	medium	no
10272HP	.096	.375	1-15/64	5/8-11	7	50	1/4	Yellow	Steel	Heavy	No	Steel Body - Delrin Ball quantity	096	375	1-15-64	5-8-11	7	50	1-4	yellow	steel	heavy	no
10255H	.025	.093	9/16	10-32	0.5	1.5	5/64	Plain	Steel	Light	Yes	Steel Body - Delrin Ball quantity	025	093	9-16	10-32	0-5	1-5	5-64	plain	steel	light	yes
10256H	.025	.093	9/16	10-32	1.5	3	5/64	Black	Steel	Medium	Yes	Steel Body - Delrin Ball quantity	025	093	9-16	10-32	1-5	3	5-64	black	steel	medium	yes
10257H	.025	.093	9/16	10-32	2	5	5/64	Yellow	Steel	Heavy	Yes	Steel Body - Delrin Ball quantity	025	093	9-16	10-32	2	5	5-64	yellow	steel	heavy	yes
10258H	.035	.125	43/64	1/4-20	2	4	5/64	Plain	Steel	Light	Yes	Steel Body - Delrin Ball quantity	035	125	43-64	1-4-20	2	4	5-64	plain	steel	light	yes
10259H	.035	.125	43/64	1/4-20	3	7	5/64	Black	Steel	Medium	Yes	Steel Body - Delrin Ball quantity	035	125	43-64	1-4-20	3	7	5-64	black	steel	medium	yes
10260H	.035	.125	43/64	1/4-20	4	12	5/64	Yellow	Steel	Heavy	Yes	Steel Body - Delrin Ball quantity	035	125	43-64	1-4-20	4	12	5-64	yellow	steel	heavy	yes
10261H	.040	.156	23/32	5/16-18	2	4.5	3/32	Plain	Steel	Light	Yes	Steel Body - Delrin Ball quantity	040	156	23-32	5-16-18	2	4-5	3-32	plain	steel	light	yes
10262H	.040	.156	23/32	5/16-18	4	9	3/32	Black	Steel	Medium	Yes	Steel Body - Delrin Ball quantity	040	156	23-32	5-16-18	4	9	3-32	black	steel	medium	yes
10263H	.040	.156	23/32	5/16-18	6	17	3/32	Yellow	Steel	Heavy	Yes	Steel Body - Delrin Ball quantity	040	156	23-32	5-16-18	6	17	3-32	yellow	steel	heavy	yes
10264H	.048	.187	13/16	3/8-16	2.5	5	5/32	Plain	Steel	Light	Yes	Steel Body - Delrin Ball quantity	048	187	13-16	3-8-16	2-5	5	5-32	plain	steel	light	yes
10265H	.048	.187	13/16	3/8-16	5	10	5/32	Black	Steel	Medium	Yes	Steel Body - Delrin Ball quantity	048	187	13-16	3-8-16	5	10	5-32	black	steel	medium	yes
10266H	.048	.187	13/16	3/8-16	6	21	5/32	Yellow	Steel	Heavy	Yes	Steel Body - Delrin Ball quantity	048	187	13-16	3-8-16	6	21	5-32	yellow	steel	heavy	yes
10267H	.072	.281	1-3/64	1/2-13	3	6	7/32	Plain	Steel	Light	Yes	Steel Body - Delrin Ball quantity	072	281	1-3-64	1-2-13	3	6	7-32	plain	steel	light	yes
10268H	.072	.281	1-3/64	1/2-13	6	12	7/32	Black	Steel	Medium	Yes	Steel Body - Delrin Ball quantity	072	281	1-3-64	1-2-13	6	12	7-32	black	steel	medium	yes
10269H	.072	.281	1-3/64	1/2-13	6	30	7/32	Yellow	Steel	Heavy	Yes	Steel Body - Delrin Ball quantity	072	281	1-3-64	1-2-13	6	30	7-32	yellow	steel	heavy	yes
10270H	.096	.375	1-15/64	5/8-11	4.5	9	1/4	Plain	Steel	Light	Yes	Steel Body - Delrin Ball quantity	096	375	1-15-64	5-8-11	4-5	9	1-4	plain	steel	light	yes
10271H	.096	.375	1-15/64	5/8-11	9	18	1/4	Black	Steel	Medium	Yes	Steel Body - Delrin Ball quantity	096	375	1-15-64	5-8-11	9	18	1-4	black	steel	medium	yes
10272H	.096	.375	1-15/64	5/8-11	7	50	1/4	Yellow	Steel	Heavy	Yes	Steel Body - Delrin Ball quantity	096	375	1-15-64	5-8-11	7	50	1-4	yellow	steel	heavy	yes

Product Categories

Thread Size

Material

Pressure

Locking Element

Thread Size

Material

Pressure

Locking Element