2"-12 Screws | McMaster-Carr

With tensile strengths from 110,000 psi to 125,000 psi, these rods are strong enough for most industrial applications, such as anchoring machinery and connecting pipe flanges. They are about twice as strong as low-strength steel rods. To avoid stripped threads during installation, make sure your nuts are also medium-strength steel.

Steel—Best for dry environments since moisture will cause these rods to rust.

	Hardness	Specs. Met		Each
Steel







	2"-12

	1	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	92580A166	000000


	3	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	92580A167	000000
	6	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	92580A168	000000

High-Strength Steel

With a tensile strength of 150,000 psi, these rods are strong enough to stabilize steel frameworks and structural supports, such as I-beams. They are about 25% stronger than medium-strength steel rods. To avoid stripped threads during installation, make sure your nuts are also high-strength steel.

Zinc-Yellow-Chromate-Plated Steel—The most common choice for areas with occasional exposure to moisture.

Steel—Best for dry environments since moisture will cause these rods to rust.

	Hardness	Specs. Met		Each
Zinc-Yellow-Chromate-Plated Steel







	2"-12

	3	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	3313N175	0000000


	Steel







					2"-12

					1	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A251	000000


					2	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A283	000000
					3	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A711	000000
					6	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A712	000000

Low-Strength Steel

With a tensile strength of 50,000 psi or 60,000 psi, these rods are often used to suspend light fixtures, cable trays, and conduit from ceilings. They're about half the strength of medium-strength steel rods. To avoid stripped threads during installation, make sure your nuts are also low-strength steel.

Steel—Best for dry environments since moisture will cause these rods to rust.

	Pkg. Qty.		Pkg.
Steel







	2"-12

	1	50,000	Rockwell B61	1	98790A470	0000000


	2	50,000	Rockwell B61	1	98791A046	000000
	3	50,000	Rockwell B61	1	98838A046	000000
	6	50,000	Rockwell B61	1	98911A046	000000