M1.6 Socket Head Cap Screws

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Class 12.9

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44 Products

Stainless Steel Socket Head Screws

Fully Threaded

These screws won't rust or corrode when exposed to moisture and chemicals. Their deep, six-point socket keeps hex keys from slipping out and damaging the drive.

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 screws can.

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel screws, these screws won't degrade when exposed to harsh weather, salt water, and most chemicals.

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







				M1.6 × 0.35 mm

				2	3	1.6	Fully Threaded	Coarse	70,000	5	91292A334	000000


				3	3	1.6	Fully Threaded	Coarse	70,000	100	91292A260	00000
				4	3	1.6	Fully Threaded	Coarse	70,000	100	91292A261	00000
				5	3	1.6	Fully Threaded	Coarse	70,000	100	91292A262	00000
				6	3	1.6	Fully Threaded	Coarse	70,000	100	91292A263	00000
				8	3	1.6	Fully Threaded	Coarse	70,000	100	91292A264	00000
				10	3	1.6	Fully Threaded	Coarse	70,000	50	91292A265	00000
				12	3	1.6	Fully Threaded	Coarse	70,000	50	91292A266	00000
				14	3	1.6	Fully Threaded	Coarse	70,000	25	91292A311	0000


				Highly Corrosion-Resistant 316 Stainless Steel







								M1.6 × 0.35 mm

								2	3	1.6	Fully Threaded	Coarse	70,000	25	92290A847	00000


								3	3	1.6	Fully Threaded	Coarse	70,000	50	92290A596	00000
								4	3	1.6	Fully Threaded	Coarse	70,000	50	92290A597	00000
								5	3	1.6	Fully Threaded	Coarse	70,000	50	92290A598	00000
								6	3	1.6	Fully Threaded	Coarse	70,000	50	92290A599	00000
								8	3	1.6	Fully Threaded	Coarse	70,000	25	92290A601	00000
								10	3	1.6	Fully Threaded	Coarse	70,000	25	92290A602	00000
								12	3	1.6	Fully Threaded	Coarse	70,000	25	92290A603	00000

Steel Socket Head Screws

Fully Threaded

Made of alloy steel, these screws are the standard for high-strength fastening. Use them in high-load applications such as dies, presses, and heavy equipment. The deep, six-point socket keeps the hex key from slipping out and damaging the drive.

Length is measured from under the head.

Black-Oxide Alloy Steel—Typically chosen for their appearance, these screws have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.

		Head, mm
	Lg., mm	Dia.	Ht.	Threading	Thread Spacing	Tensile Strength, psi	Fastener Strength Grade/Class	Pkg. Qty.		Pkg.
Black-Oxide Alloy Steel







				M1.6 × 0.35 mm

				3	3	1.6	Fully Threaded	Coarse	170,000	Class 12.9	25	91290A020	00000


				4	3	1.6	Fully Threaded	Coarse	170,000	Class 12.9	25	91290A021	0000
				5	3	1.6	Fully Threaded	Coarse	170,000	Class 12.9	25	91290A022	0000
				6	3	1.6	Fully Threaded	Coarse	170,000	Class 12.9	25	91290A023	0000
				8	3	1.6	Fully Threaded	Coarse	170,000	Class 12.9	25	91290A041	0000
				10	3	1.6	Fully Threaded	Coarse	170,000	Class 12.9	25	91290A295	00000
				12	3	1.6	Fully Threaded	Coarse	170,000	Class 12.9	25	91290A043	00000
				16	3	1.6	Fully Threaded	Coarse	170,000	Class 12.9	25	91290A296	0000

Stainless Steel Button Head Hex-Drive Screws

These button head screws won't corrode from moisture and chemicals, but they aren't as strong as alloy steel screws. The button head looks similar to a pan head, but it's lower and more compact, taking up less space. With six contact points, the hex drive withstands more torque than slotted and Phillips to securely grip your driver.

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
	Lg., mm	Dia.	Ht.	Threading	Tensile Strength, psi	Certificate Type	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				M1.6 × 0.35 mm

				3	3.2	1.3	Fully Threaded	70,000	—	50	92095A321	00000


				4	3.2	1.3	Fully Threaded	70,000	Material Certificate	50	92095A322	0000
				5	3.2	1.3	Fully Threaded	70,000	Material Certificate	50	92095A323	0000

Stainless Steel Torx Flat Head Screws

The most corrosion-resistant Torx flat head screws we offer. Made of stainless steel, they won't rust or corrode when exposed to moisture and chemicals. With a deep six-lobe opening, these screws prevent slipping and stripping drives. Also known as star drives, they withstand more torque than slotted, Phillips, and hex drives.

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.

Standard Profile—Standard-profile heads are the most common choice for flat head screws.

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

				Head, mm
	Lg., mm	Countersink Angle	Flat Head Profile	Dia.	Ht.	Threading	Tensile Strength	Specs. Met	Certificate Type	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				M1.6 × 0.35 mm

				6	90°	Standard	3	0.96	Fully Threaded	Not Rated	ISO 14581	Material Certificate	50	92703A444	00000

Stainless Steel Torx Plus Flat Head Screws

The most corrosion-resistant Torx Plus flat head screws we offer. Made of stainless steel, they won't rust or corrode when exposed to moisture and chemicals, but they're not as strong as alloy steel. With larger lobes than Torx drives, Torx Plus withstands even more torque without slipping and stripping the drive.

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.

Standard Profile—Standard-profile heads are the most common choice for flat head screws.

				Head, mm
	Lg., mm	Countersink Angle	Flat Head Profile	Dia.	Ht.	Threading	Tensile Strength	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				M1.6 × 0.35 mm

				3	90°	Standard	3.65	0.96	Fully Threaded	Not Rated	ASME B18.6.7M	100	92703A140	00000


				4	90°	Standard	3.65	0.96	Fully Threaded	Not Rated	ASME B18.6.7M	100	92703A141	0000
				5	90°	Standard	3.65	0.96	Fully Threaded	Not Rated	ASME B18.6.7M	100	92703A142	0000

Stainless Steel Button Head Torx Screws

Our most corrosion-resistant button head Torx screws. The button head looks similar to a pan head, but it's lower and more compact, taking up less space. With a deep six-lobe opening, the Torx drive prevents your driver from slipping and stripping the drive. Also known as star drives, they withstand more torque than slotted, Phillips, and hex drives.

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







				M1.6 × 0.35 mm

				3	3.03	0.88	Fully Threaded	100,000	100	90910A900	000000


				4	3.03	0.88	Fully Threaded	100,000	100	90910A901	00000
				5	3.03	0.88	Fully Threaded	100,000	100	90910A902	00000

Sealing Socket Head Screws

Fully Threaded

Keep out dust and contaminants and lock in air and fluid. As you tighten these corrosion-resistant screws, a rubber O-ring under the head compresses to form a tight seal. The deep, six-point socket keeps hex keys from slipping out and damaging the drive.

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 screws can.

Buna-N O-Ring—These seals won't swell or soften when they touch oil, grease, or fuel.

Silicone Rubber O-Ring—Withstand a wider range of temperatures than Buna-N and Viton® seals without becoming brittle. However, they degrade when exposed to oil, grease, and fuel.

		Head, mm
	Lg., mm	Dia.	Ht.	Threading	Thread Spacing	Tensile Strength, psi	Max. Pressure, psi	O-Ring Temp. Range, ° F	Pkg. Qty.		Pkg.
18-8 Stainless Steel with Buna-N O-Ring







				M1.6 × 0.35 mm

				4	3	1.6	Fully Threaded	Coarse	100,000	1,500	-40 to 225	1	90042A313	00000


				8	3	1.6	Fully Threaded	Coarse	100,000	1,500	-40 to 225	1	90042A315	0000
				10	3	1.6	Fully Threaded	Coarse	100,000	1,500	-40 to 225	1	90042A316	0000
				12	3	1.6	Fully Threaded	Coarse	100,000	1,500	-40 to 225	1	90042A317	0000
				14	3	1.6	Fully Threaded	Coarse	100,000	1,500	-40 to 225	1	90042A318	0000


				18-8 Stainless Steel with Silicone Rubber O-Ring







								M1.6 × 0.35 mm

								8	3	1.6	Fully Threaded	Coarse	100,000	1,500	-80 to 400	1	90042A134	0000


								10	3	1.6	Fully Threaded	Coarse	100,000	1,500	-80 to 400	1	90042A135	0000
								12	3	1.6	Fully Threaded	Coarse	100,000	1,500	-80 to 400	1	90042A136	0000
								14	3	1.6	Fully Threaded	Coarse	100,000	1,500	-80 to 400	1	90042A137	0000