Nickel Hex Head Screws

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105 Products

About Hex Head Screws and Bolts

Choose a hex head fastener with the right threading, thread size, material, and strength for your equipment.


Fully Threaded	Partially Threaded

Withstand salt water and even some of the harshest acids. These screws have a head with six flat sides to keep wrenches and sockets from slipping and rounding off the drive.

Length is measured from under the head.

Ultra-Corrosion-Resistant 400 Nickel—As strong as 316 stainless steel screws and outperform them in salt water and harsh acids. 400 nickel is also known as Monel.

Extreme-Strength Extreme-Temperature 718 Nickel—Also known as Inconel 718, these screws tackle high-stress fastening in harsh environments. More than twice as strong as 400 nickel screws, they're on par with Grade 9 and Class 12.9 steel. They hold up in extreme temperatures, salt water, and harsh acids, such as nitric and sulfuric. If you need more corrosion resistance, go with 400 nickel screws.

		Head
	Lg.	Wd.	Ht.	Threading	Thread Spacing	Tensile Strength, psi	Temp.	Mil. Spec.		Each
Ultra-Corrosion-Resistant 400 Nickel







				1/4"-20

				1/2"	7/16"	5/32"	Fully Threaded	Coarse	80,000	—	MIL-S-1222	90780A538	00000


				3/4"	7/16"	5/32"	Fully Threaded	Coarse	80,000	—	MIL-S-1222	90780A540	0000
				1"	7/16"	5/32"	Fully Threaded	Coarse	80,000	—	MIL-S-1222	90780A542	0000
				1 1/2"	7/16"	5/32"	Partially Threaded	Coarse	80,000	—	MIL-S-1222	90780A546	0000
				2"	7/16"	5/32"	Partially Threaded	Coarse	80,000	—	MIL-S-1222	90780A548	0000




						5/16"-18

						3/4"	1/2"	13/64"	Fully Threaded	Coarse	80,000	—	MIL-S-1222	90780A580	0000


						1"	1/2"	13/64"	Fully Threaded	Coarse	80,000	—	MIL-S-1222	90780A583	0000
						1 1/2"	1/2"	13/64"	Partially Threaded	Coarse	80,000	—	MIL-S-1222	90780A587	0000
						2"	1/2"	13/64"	Partially Threaded	Coarse	80,000	—	MIL-S-1222	90780A589	00000




								3/8"-16

								1"	9/16"	15/64"	Fully Threaded	Coarse	80,000	—	MIL-S-1222	90780A624	0000


								1 1/4"	9/16"	15/64"	Fully Threaded	Coarse	80,000	—	MIL-S-1222	90780A626	0000
								1 1/2"	9/16"	15/64"	Partially Threaded	Coarse	80,000	—	MIL-S-1222	90780A628	00000
								2"	9/16"	15/64"	Partially Threaded	Coarse	80,000	—	MIL-S-1222	90780A630	00000




										1/2"-13

										1 1/2"	3/4"	5/16"	Fully Threaded	Coarse	80,000	—	MIL-S-1222	90780A716	00000


										2"	3/4"	5/16"	Partially Threaded	Coarse	80,000	—	MIL-S-1222	90780A720	00000
										2 1/2"	3/4"	5/16"	Partially Threaded	Coarse	80,000	—	MIL-S-1222	90780A722	00000
										3"	3/4"	5/16"	Partially Threaded	Coarse	80,000	—	MIL-S-1222	90780A724	00000




												5/8"-11

												2"	15/16"	25/64"	Fully Threaded	Coarse	80,000	—	MIL-S-1222	90780A805	00000


												2 1/2"	15/16"	25/64"	Partially Threaded	Coarse	80,000	—	MIL-S-1222	90780A809	00000
												3"	15/16"	25/64"	Partially Threaded	Coarse	80,000	—	MIL-S-1222	90780A813	00000


Extreme-Strength Extreme-Temperature 718 Nickel







												1/4"-20

												1/2"	7/16"	11/64"	Fully Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A111	00000


												3/4"	7/16"	11/64"	Fully Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A112	00000
												1"	7/16"	11/64"	Partially Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A113	00000
												1 1/2"	7/16"	11/64"	Partially Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A114	00000
												2"	7/16"	11/64"	Partially Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A115	00000




												3/8"-16

												1"	9/16"	1/4"	Fully Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A116	00000


												1 1/2"	9/16"	1/4"	Partially Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A117	00000
												2"	9/16"	1/4"	Partially Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A118	00000
												2 1/2"	9/16"	1/4"	Partially Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A119	00000
												3"	9/16"	1/4"	Partially Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A121	00000




												1/2"-13

												1"	3/4"	11/32"	Fully Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A122	00000


												1 1/2"	3/4"	11/32"	Partially Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A123	00000
												2"	3/4"	11/32"	Partially Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A124	00000
												2 1/2"	3/4"	11/32"	Partially Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A125	00000
								3"				3/4"	11/32"	Partially Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A126	00000
								3 1/2"	3/4"			11/32"	Partially Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A127	00000




												M6 × 1 mm

												16 mm	10 mm	4.2 mm	Fully Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A128	00000


												20 mm	10 mm	4.2 mm	Fully Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A129	00000
										25 mm	10 mm	4.2 mm	Fully Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A131	00000
										30 mm	10 mm	4.2 mm	Partially Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A132	00000




												M8 × 1.25 mm

												16 mm	13 mm	5.5 mm	Fully Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A133	00000


20 mm												13 mm	5.5 mm	Fully Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A134	00000
25 mm	13 mm											5.5 mm	Fully Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A135	00000
30 mm	13 mm											5.5 mm	Fully Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A136	00000
40 mm	13 mm											5.5 mm	Partially Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A137	00000
50 mm	13 mm											5.5 mm	Partially Threaded	Coarse	185,000	-425° F to 1,800° F	—	91637A138	00000

Nickel Socket Head Screws

The strongest ultra-corrosion-resistant screws we offer, these withstand some of the harshest acids and salt water. The deep, six-point socket keeps hex keys from slipping out and damaging the drive.

Length is measured from under the head.

Ultra-Corrosion-Resistant 400 Nickel—As strong as 316 stainless steel screws and outperform them in salt water and harsh acids. 400 nickel is also known as Monel.

		Head
	Lg.	Dia.	Ht.	Threading	Thread Spacing	Tensile Strength, psi		Each
Ultra-Corrosion-Resistant 400 Nickel







				4-40

				1/4"	0.183"	0.112"	Fully Threaded	Coarse	70,000	96146A115	00000


				5/16"	0.183"	0.112"	Fully Threaded	Coarse	70,000	96146A116	0000
				3/8"	0.183"	0.112"	Fully Threaded	Coarse	70,000	96146A117	00000
				1/2"	0.183"	0.112"	Fully Threaded	Coarse	70,000	96146A118	00000




						6-32

						3/8"	0.226"	0.138"	Fully Threaded	Coarse	70,000	96146A125	00000


						1/2"	0.226"	0.138"	Fully Threaded	Coarse	70,000	96146A127	00000




								8-32

								3/8"	0.27"	0.164"	Fully Threaded	Coarse	70,000	96146A135	00000


								1/2"	0.27"	0.164"	Fully Threaded	Coarse	70,000	96146A137	00000
								3/4"	0.27"	0.164"	Fully Threaded	Coarse	70,000	96146A141	00000




										10-32

										1/2"	5/16"	0.19"	Fully Threaded	Fine	70,000	96146A155	00000


										1"	5/16"	0.19"	Fully Threaded	Fine	70,000	96146A161	00000




												1/4"-20

												1/2"	3/8"	1/4"	Fully Threaded	Coarse	70,000	96146A175	00000


												5/8"	3/8"	1/4"	Fully Threaded	Coarse	70,000	96146A177	00000
												3/4"	3/8"	1/4"	Fully Threaded	Coarse	70,000	96146A179	00000
												1"	3/8"	1/4"	Fully Threaded	Coarse	70,000	96146A181	00000
												1 1/4"	3/8"	1/4"	Fully Threaded	Coarse	70,000	96146A183	00000




														M3 × 0.5 mm

6 mm	5.5 mm													3 mm	Fully Threaded	Coarse	70,000	96146A211	00000


12 mm	5.5 mm													3 mm	Fully Threaded	Coarse	70,000	96146A214	00000




		M6 × 1 mm

		16 mm	10 mm											6 mm	Fully Threaded	Coarse	70,000	96146A227	00000


		25 mm	10 mm											6 mm	Fully Threaded	Coarse	70,000	96146A229	00000

Nickel Cup-Tip Set Screws

The most corrosion-resistant set screws we offer. Made of nickel, these screws match 316 stainless steel's strength but outperform it in salt water and harsh acid environments. The tip has thin edges that dig into surfaces for a secure hold. They often lock gears, pulleys, and other transmission components onto shafts. 400 Nickel is also known as Monel.

	Specs. Met		Each
Ultra-Corrosion-Resistant 400 Nickel







	10-24

	3/16"	3/32"	Not Rated	ASME B18.3	93386A261	00000


	1/4"	3/32"	Not Rated	ASME B18.3	93386A265	0000
	3/8"	3/32"	Not Rated	ASME B18.3	93386A273	0000
	1/2"	3/32"	Not Rated	ASME B18.3	93386A277	0000




			10-32

			3/16"	3/32"	Not Rated	ASME B18.3	93386A310	0000


			1/4"	3/32"	Not Rated	ASME B18.3	93386A315	0000
			3/8"	3/32"	Not Rated	ASME B18.3	93386A321	0000
			1/2"	3/32"	Not Rated	ASME B18.3	93386A326	0000




					1/4"-20

					3/16"	1/8"	Not Rated	ASME B18.3	93386A436	0000


					1/4"	1/8"	Not Rated	ASME B18.3	93386A442	0000
					5/16"	1/8"	Not Rated	ASME B18.3	93386A448	00000
					3/8"	1/8"	Not Rated	ASME B18.3	93386A454	00000
					1/2"	1/8"	Not Rated	ASME B18.3	93386A460	00000




							5/16"-18

							5/16"	5/32"	Not Rated	ASME B18.3	93386A496	0000


							3/8"	5/32"	Not Rated	ASME B18.3	93386A502	0000
							1/2"	5/32"	Not Rated	ASME B18.3	93386A508	00000




									3/8"-16

									3/8"	3/16"	Not Rated	ASME B18.3	93386A616	0000


									1/2"	3/16"	Not Rated	ASME B18.3	93386A622	00000
									3/4"	3/16"	Not Rated	ASME B18.3	93386A628	00000
									1"	3/16"	Not Rated	ASME B18.3	93386A634	00000

Nickel Hex-Drive Shoulder Screws

The most corrosion-resistant standard-fit screws we offer. Made of nickel alloy, they are ideal for environments where there's exposure to harsh chemicals.

				Head					Certificate			Each
	Shoulder Lg.	Thread Size	Thread Lg.	Dia.	Ht.	Drive Size	Tensile Strength, psi	Specs. Met	Type	Form		1-4	5-Up
Ultra-Corrosion-Resistant Nickel







				1/8" Diameter Shoulder (-0.004" to -0.002" Tolerance)

				1/8"	4-40	5/32"	1/4"	1/8"	5/64"	70,000	—	—	—	96125A301	000000	000000


				3/16"	4-40	5/32"	1/4"	1/8"	5/64"	70,000	—	Material Certificate	Digital	96125A302	00000	00000
				1/4"	4-40	5/32"	1/4"	1/8"	5/64"	70,000	—	—	—	96125A303	00000	00000
				5/16"	4-40	5/32"	1/4"	1/8"	5/64"	70,000	—	Material Certificate	Digital	96125A304	00000	00000
				3/8"	4-40	5/32"	1/4"	1/8"	5/64"	70,000	—	Material Certificate	Digital	96125A305	00000	00000
				1/2"	4-40	5/32"	1/4"	1/8"	5/64"	70,000	—	—	—	96125A306	00000	00000




						3/16" Diameter Shoulder (-0.004" to -0.002" Tolerance)

						1/8"	8-32	3/16"	5/16"	5/32"	3/32"	70,000	—	Material Certificate	Digital	96125A401	00000	00000


						3/16"	8-32	3/16"	5/16"	5/32"	3/32"	70,000	—	—	—	96125A402	00000	00000
						1/4"	8-32	3/16"	5/16"	5/32"	3/32"	70,000	—	Material Certificate	Digital	96125A403	00000	00000
						5/16"	8-32	3/16"	5/16"	5/32"	3/32"	70,000	—	Material Certificate	Digital	96125A404	00000	00000
						3/8"	8-32	3/16"	5/16"	5/32"	3/32"	70,000	—	—	—	96125A405	00000	00000
						1/2"	8-32	3/16"	5/16"	5/32"	3/32"	70,000	—	—	—	96125A406	00000	00000
						3/4"	8-32	3/16"	5/16"	5/32"	3/32"	70,000	—	—	—	96125A407	00000	00000
						1"	8-32	3/16"	5/16"	5/32"	3/32"	70,000	—	Material Certificate	Digital	96125A408	00000	00000




								1/4" Diameter Shoulder (-0.004" to -0.002" Tolerance)

								1/4"	10-24	3/8"	3/8"	3/16"	1/8"	70,000	ASME B18.3	—	—	96125A501	00000	00000


								3/8"	10-24	3/8"	3/8"	3/16"	1/8"	70,000	ASME B18.3	Material Certificate	Digital	96125A502	00000	00000
								1/2"	10-24	3/8"	3/8"	3/16"	1/8"	70,000	ASME B18.3	Material Certificate	Digital	96125A503	00000	00000
								3/4"	10-24	3/8"	3/8"	3/16"	1/8"	70,000	ASME B18.3	Material Certificate	Digital	96125A504	00000	00000
								1"	10-24	3/8"	3/8"	3/16"	1/8"	70,000	ASME B18.3	—	—	96125A505	00000	00000