JIS Rounded Head Screws | McMaster-Carr

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112 Products

Performance

Vibration Resistant

Keep parts from coming loose on machinery with movement and vibration

6 products

Corrosion Resistant

Stay strong when exposed to moisture, chemicals, and harsh weather

44 products

Locking Type

Lock Washer

Keep screws steady during light to frequent movement and vibration

6 products

Drive Style

Phillips

A common drive style that aligns easily with drivers

6 products

Stainless Steel Pan Head Phillips Screws with External-Tooth Lock Washer

These corrosion-resistant screws have sharp external teeth that hold better than screws with internal teeth when vibration resistance matters. They’re less likely to come loose during vibration, but the teeth may snag on surrounding objects. Also known as Sems screws, the washer rotates freely but is permanently attached. They have a moderate height and width profile, offering a middle ground between narrower button heads and wider truss heads. The Phillips drive easily aligns with drivers and withstands more torque than slotted drives, but drivers slip when you apply too much force.

Length is measured from under the head.

18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel can.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

		Head, mm		Washer, mm
	Lg., mm	Dia.	Ht.	OD	Thk.	Threading	Tensile Strength, psi	Specs. Met	Certificate Type	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				M4 × 0.7 mm

				6	8	3.1	7.92	0.6	Fully Threaded	70,000	JIS B 1188	Material Certificate	10	90317A571	00000


				16	8	3.1	8.5	0.6	Fully Threaded	70,000	JIS B 1188-C	Material Certificate	10	90317A582	00000

JIS Steel Pan Head Screws

These screws are manufactured to meet Japanese Industrial Standards. Similar in appearance to Phillips, the JIS drive has a shallower opening with sharper angles and straighter internal walls. This lets them withstand more torque while preventing the driver from slipping and damaging the drive. Tighten them only with a JIS driver to avoid stripping the drive. Some JIS screws are marked with a dot near the drive for quick identification. Pan heads have a moderate height and width profile, offering a middle ground between narrower button heads and wider truss heads.

Length is measured from under the head.

Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.

		Head, mm
	Lg., mm	Dia.	Ht.	Threading	Tensile Strength, psi	Specs. Met	Certificate Type	Pkg. Qty.		Pkg.
Zinc-Plated Steel







				M2 × 0.4 mm

				3	3.5	1.3	Fully Threaded	Not Rated	JIS B 1111	—	25	94387A511	00000


				4	3.5	1.3	Fully Threaded	Not Rated	JIS B 1111	—	25	94387A512	0000
				5	3.5	1.3	Fully Threaded	Not Rated	JIS B 1111	—	25	94387A513	0000
				6	3.5	1.3	Fully Threaded	Not Rated	JIS B 1111	—	25	94387A514	0000
				8	3.5	1.3	Fully Threaded	Not Rated	JIS B 1111	Material Certificate	25	94387A515	0000
				10	3.5	1.3	Fully Threaded	Not Rated	JIS B 1111	—	25	94387A516	0000
				12	3.5	1.3	Fully Threaded	Not Rated	JIS B 1111	—	25	94387A517	0000




						M2.5 × 0.45 mm

						4	4.5	1.7	Fully Threaded	Not Rated	JIS B 1111	—	25	94387A518	0000


						6	4.5	1.7	Fully Threaded	Not Rated	JIS B 1111	—	25	94387A519	0000
						8	4.5	1.7	Fully Threaded	Not Rated	JIS B 1111	—	25	94387A521	0000
						10	4.5	1.7	Fully Threaded	Not Rated	JIS B 1111	—	25	94387A522	0000
						12	4.5	1.7	Fully Threaded	Not Rated	JIS B 1111	—	25	94387A523	0000




								M2.6 × 0.45 mm

								4	4.5	1.7	Fully Threaded	Not Rated	JIS B 1111	—	25	94387A524	0000


								6	4.5	1.7	Fully Threaded	Not Rated	JIS B 1111	—	25	94387A525	0000
								8	4.5	1.7	Fully Threaded	Not Rated	JIS B 1111	—	25	94387A526	0000
								10	4.5	1.7	Fully Threaded	Not Rated	JIS B 1111	—	25	94387A527	0000
								12	4.5	1.7	Fully Threaded	Not Rated	JIS B 1111	—	25	94387A528	0000




										M3 × 0.5 mm

										4	5.5	2	Fully Threaded	60,000	JIS B 1111	—	25	94387A203	0000


										5	5.5	2	Fully Threaded	Not Rated	JIS B 1111	—	25	94387A205	0000
										6	5.5	2	Fully Threaded	60,000	JIS B 1111	—	25	94387A206	0000
										8	5.5	2	Fully Threaded	60,000	JIS B 1111	—	25	94387A209	0000
										10	5.5	2	Fully Threaded	60,000	JIS B 1111	—	25	94387A212	0000
										12	5.5	2	Fully Threaded	60,000	JIS B 1111	—	25	94387A215	0000
										16	5.5	2	Fully Threaded	60,000	JIS B 1111	—	25	94387A218	0000
										20	5.5	2	Fully Threaded	60,000	JIS B 1111	—	25	94387A221	0000
										25	5.5	2	Fully Threaded	60,000	JIS B 1111	—	25	94387A224	00000
										30	5.5	2	Fully Threaded	60,000	JIS B 1111	—	25	94387A227	00000
										35	5.5	2	Fully Threaded	60,000	JIS B 1111	—	25	94387A229	00000


40	5.5									2	Fully Threaded	60,000	JIS B 1111	—	25	94387A231	00000
45	5.5									2	Fully Threaded	60,000	JIS B 1111	—	25	94387A233	00000




		M4 × 0.7 mm

		6	7							2.6	Fully Threaded	Not Rated	JIS B 1111	—	25	94387A239	0000


		8	7							2.6	Fully Threaded	60,000	JIS B 1111	—	25	94387A240	0000
		10	7							2.6	Fully Threaded	60,000	JIS B 1111	—	25	94387A245	0000
		12	7							2.6	Fully Threaded	60,000	JIS B 1111	—	25	94387A250	0000
		16	7							2.6	Fully Threaded	60,000	JIS B 1111	—	25	94387A253	00000
		20	7							2.6	Fully Threaded	60,000	JIS B 1111	—	25	94387A256	00000
		25	7							2.6	Fully Threaded	60,000	JIS B 1111	—	25	94387A259	00000
		30	7							2.6	Fully Threaded	60,000	JIS B 1111	—	25	94387A262	00000
		35	7							2.6	Fully Threaded	60,000	JIS B 1111	—	25	94387A265	00000
		40	7							2.6	Fully Threaded	60,000	JIS B 1111	—	25	94387A268	00000
		45	7	2.6						Fully Threaded	60,000	JIS B 1111	—	25	94387A271	00000


		50	7	2.6	Fully Threaded					60,000	JIS B 1111	—	10	94387A274	00000
		60	7	2.6	Fully Threaded					60,000	JIS B 1111	—	10	94387A280	00000




				M5 × 0.8 mm

				6	9					3.3	Fully Threaded	Not Rated	JIS B 1111	—	25	94387A315	00000


				8	9	3.3				Fully Threaded	60,000	JIS B 1111	—	25	94387A320	00000
				10	9	3.3	Fully Threaded			60,000	JIS B 1111	—	25	94387A323	00000
				12	9	3.3	Fully Threaded			60,000	JIS B 1111	—	25	94387A326	00000
				16	9	3.3	Fully Threaded			60,000	JIS B 1111	—	25	94387A329	00000
				20	9	3.3	Fully Threaded			60,000	JIS B 1111	—	25	94387A332	00000
				25	9	3.3	Fully Threaded			60,000	JIS B 1111	—	25	94387A335	00000
				30	9	3.3	Fully Threaded			60,000	JIS B 1111	—	25	94387A338	00000
				35	9	3.3	Fully Threaded			60,000	JIS B 1111	—	25	94387A341	00000
				40	9	3.3	Fully Threaded			60,000	JIS B 1111	—	10	94387A344	00000
				45	9	3.3	Fully Threaded			60,000	JIS B 1111	—	10	94387A347	00000


				50	9	3.3	Fully Threaded			60,000	JIS B 1111	—	10	94387A350	00000
				60	9	3.3	Fully Threaded	60,000		JIS B 1111	—	10	94387A356	00000




						M6 × 1 mm

						10	10.5	3.9	Fully Threaded	60,000	JIS B 1111	—	25	94387A420	00000


						12	10.5	3.9	Fully Threaded	60,000	JIS B 1111	—	25	94387A423	00000
						16	10.5	3.9	Fully Threaded	60,000	JIS B 1111	—	25	94387A426	00000
						20	10.5	3.9	Fully Threaded	60,000	JIS B 1111	—	25	94387A429	00000
						25	10.5	3.9	Fully Threaded	60,000	JIS B 1111	—	10	94387A432	00000
						30	10.5	3.9	Fully Threaded	60,000	JIS B 1111	—	10	94387A435	00000
						35	10.5	3.9	Fully Threaded	60,000	JIS B 1111	—	10	94387A438	00000
						40	10.5	3.9	Fully Threaded	60,000	JIS B 1111	—	10	94387A441	00000
						50	10.5	3.9	Fully Threaded	60,000	JIS B 1111	—	10	94387A447	00000
						60	10.5	3.9	Fully Threaded	60,000	JIS B 1111	—	10	94387A453	00000
						70	10.5	3.9	Fully Threaded	60,000	JIS B 1111	—	10	94387A459	00000


80	10.5					3.9	Fully Threaded	60,000	JIS B 1111	—	5	94387A465	00000

Stainless Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer

These corrosion-resistant screws have a washer with sharp internal teeth to keep screws in place during vibration. Unlike external-tooth lock washers, their smooth outside edge provides a finished look and won’t snag on surrounding objects. Also known as Sems screws, the washer rotates freely but is permanently attached. These screws have a moderate height and width profile, offering a middle ground between narrower button heads and wider truss heads. The Phillips drive easily aligns with drivers and withstands more torque than slotted drives, but drivers slip when you apply too much force.

Length is measured from under the head.

18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel can.

		Head, mm		Washer, mm
	Lg., mm	Dia.	Ht.	OD	Thk.	Threading	Tensile Strength, psi	Specs. Met	Certificate Type	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				M3 × 0.5 mm

				20	5.6	2.4	6.50	0.45	Fully Threaded	70,000	JIS B 1188-D	Material Certificate	10	90317A723	000000


				25	5.6	2.4	6.50	0.45	Fully Threaded	70,000	JIS B 1188-D	—	10	90317A724	00000




						M4 × 0.7 mm

						5	7	2.75	8.50	0.60	Fully Threaded	70,000	JIS B 1188-D	—	25	90317A725	00000




								M5 × 0.8 mm

								12	10	3.8	10	0.6	Fully Threaded	70,000	JIS B 1188-D	—	10	90317A205	00000

JIS Stainless Steel Pan Head Screws

Our most corrosion-resistant rounded head screws that are made to Japanese Industrial Standards. Similar in appearance to Phillips, the JIS drive has a shallower opening with sharper angles and straighter internal walls. This lets them withstand more torque while preventing the driver from slipping and damaging the drive. Tighten them only with a JIS driver to avoid stripping the screw. Some JIS screws are marked with a dot near the drive for quick identification. Pan heads have a moderate height and width profile, offering a middle ground between narrower button heads and wider truss heads.

Length is measured from the top of the head.

18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel can.

		Head, mm
	Lg., mm	Dia.	Ht.	Threading	Tensile Strength, psi	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				M3 × 0.5 mm

				4	5.5	2	Fully Threaded	50,000	JIS B 1111	25	94102A101	000000


				5	5.5	2.4	Fully Threaded	50,000	JIS B 1111	25	94102A136	00000
				6	5.5	2	Fully Threaded	50,000	JIS B 1111	25	94102A102	00000
				8	5.5	2	Fully Threaded	50,000	JIS B 1111	25	94102A103	00000
				10	5.5	2	Fully Threaded	50,000	JIS B 1111	25	94102A104	00000
				12	5.5	2	Fully Threaded	50,000	JIS B 1111	25	94102A105	00000
				16	5.5	2	Fully Threaded	50,000	JIS B 1111	25	94102A106	00000
				20	5.5	2	Fully Threaded	50,000	JIS B 1111	10	94102A107	00000
				25	5.5	2	Fully Threaded	50,000	JIS B 1111	10	94102A108	00000
				30	5.5	2	Fully Threaded	50,000	JIS B 1111	10	94102A109	00000
				35	5.5	2	Fully Threaded	50,000	JIS B 1111	10	94102A110	00000


				40	5.5	2	Fully Threaded	50,000	JIS B 1111	5	94102A111	00000




						M4 × 0.7 mm

						6	8	3.1	Fully Threaded	50,000	JIS B 1111	10	94102A137	00000


						8	8	3.1	Fully Threaded	50,000	JIS B 1111	10	94102A138	00000
						10	8	3.1	Fully Threaded	50,000	JIS B 1111	10	94102A139	00000
						12	7	2.6	Fully Threaded	50,000	JIS B 1111	10	94102A112	00000
						16	7	2.6	Fully Threaded	50,000	JIS B 1111	10	94102A113	00000
						20	7	2.6	Fully Threaded	50,000	JIS B 1111	10	94102A114	00000
						25	7	2.6	Fully Threaded	50,000	JIS B 1111	10	94102A115	00000
						40	7	2.6	Fully Threaded	50,000	JIS B 1111	5	94102A116	00000
						50	7	2.6	Fully Threaded	50,000	JIS B 1111	5	94102A117	00000




								M5 × 0.8 mm

								8	9	3.3	Fully Threaded	50,000	JIS B 1111	10	94102A118	00000


								10	9	3.3	Fully Threaded	50,000	JIS B 1111	5	94102A119	00000
								12	9	3.3	Fully Threaded	50,000	JIS B 1111	10	94102A120	00000
								16	9	3.3	Fully Threaded	50,000	JIS B 1111	5	94102A121	00000
								20	9	3.3	Fully Threaded	50,000	JIS B 1111	5	94102A122	00000
								25	9	3.3	Fully Threaded	50,000	JIS B 1111	5	94102A123	00000
								30	9	3.3	Fully Threaded	50,000	JIS B 1111	5	94102A124	00000
								35	9	3.3	Fully Threaded	50,000	JIS B 1111	5	94102A125	00000
								50	9	3.3	Fully Threaded	50,000	JIS B 1111	1	94102A126	0000




										M6 × 1 mm

10	10.5									3.9	Fully Threaded	50,000	JIS B 1111	5	94102A127	00000


12	10.5									3.9	Fully Threaded	50,000	JIS B 1111	5	94102A128	00000
16	10.5	3.9								Fully Threaded	50,000	JIS B 1111	5	94102A129	00000
20	10.5	3.9	Fully Threaded							50,000	JIS B 1111	5	94102A130	00000
25	10.5	3.9	Fully Threaded							50,000	JIS B 1111	1	94102A131	0000
30	10.5	3.9	Fully Threaded							50,000	JIS B 1111	1	94102A132	0000
35	10.5	3.9	Fully Threaded							50,000	JIS B 1111	1	94102A133	0000
40	10.5	3.9	Fully Threaded							50,000	JIS B 1111	1	94102A134	0000