M30 Thread Socket Head Screws

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20 Products

Steel Socket Head Screws


Fully Threaded	Partially 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	Specs. Met	Pkg. Qty.		Pkg.
Black-Oxide Alloy Steel







				M30 × 3.5 mm

				50	45	30	Fully Threaded	Coarse	170,000	Class 12.9	DIN 912, ISO 4762	1	91290A379	000000


				60	45	30	Fully Threaded	Coarse	170,000	Class 12.9	DIN 912, ISO 4762	1	91290A915	0000
				70	45	30	Fully Threaded	Coarse	170,000	Class 12.9	DIN 912, ISO 4762	1	91290A881	0000
				80	45	30	Fully Threaded	Coarse	170,000	Class 12.9	DIN 912, ISO 4762	1	91290A882	0000
				90	45	30	Fully Threaded	Coarse	170,000	Class 12.9	DIN 912, ISO 4762	1	91290A883	00000
				100	45	30	Fully Threaded	Coarse	170,000	Class 12.9	DIN 912, ISO 4762	1	91290A884	00000
				110	45	30	Partially Threaded	Coarse	170,000	Class 12.9	DIN 912, ISO 4762	1	91290A885	00000
				120	45	30	Partially Threaded	Coarse	170,000	Class 12.9	DIN 912, ISO 4762	1	91290A886	00000
				130	45	30	Partially Threaded	Coarse	170,000	Class 12.9	DIN 912, ISO 4762	1	91290A887	00000
				140	45	30	Partially Threaded	Coarse	170,000	Class 12.9	DIN 912, ISO 4762	1	91290A521	00000
				150	45	30	Partially Threaded	Coarse	170,000	Class 12.9	DIN 912, ISO 4762	1	91290A889	00000


				160	45	30	Partially Threaded	Coarse	170,000	Class 12.9	DIN 912, ISO 4762	1	91290A890	00000
				180	45	30	Partially Threaded	Coarse	170,000	Class 12.9	DIN 912, ISO 4762	1	91290A891	00000
				200	45	30	Partially Threaded	Coarse	170,000	Class 12.9	DIN 912, ISO 4762	1	91290A971	00000
				240	45	30	Partially Threaded	Coarse	170,000	Class 12.9	DIN 912, ISO 4762	1	91290A976	00000
				300	45	30	Partially Threaded	Coarse	170,000	Class 12.9	DIN 912, ISO 4762	1	91290A892	00000

Steel Hex-Drive Flat Head Screws

Our strongest hex-drive flat head screws. They're made of alloy steel, so they have nearly twice the tensile strength of other screws. With six contact points, the hex drive withstands more torque than slotted and Phillips to securely grip your driver without slipping and stripping the drive.

Length is measured from the top of the head.

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, psi	Specs. Met	Pkg. Qty.		Pkg.
Black-Oxide Alloy Steel







				M30 × 3.5 mm

				90	60°	Standard	49	19.6	Fully Threaded	120,000	DIN 7991	1	91294A577	000000

Steel Cup-Tip Set Screws

Made of alloy steel, these screws are strong enough to hold components without wearing down. The tip has thin edges that dig into surfaces for a secure hold. They often lock gears, pulleys, and other transmission components onto shafts.

	Specs. Met	Pkg. Qty.		Pkg.
Alloy Steel







	M30 × 3.5 mm

	25	14	Rockwell C45	DIN 916, ISO 4029	1	91390A582	000000


	40	14	Rockwell C45	DIN 916, ISO 4029	1	91390A583	00000
	50	14	Rockwell C45	DIN 916, ISO 4029	1	91390A584	000000