The Grade 10 Nuts with specified proof load values - coarse thread

The ISO 898-2:2013 Grade 10 specification covers carbon steel nuts ranging from M-6 to M-64 diameter. We use high carbon steel material and high alloy steel raw materials to achieve the required properties of grade 10. There are three popular grades in this standard 8, 10 and 12 which denote material hardness Strength and their respective mechanical properties. Refer to the Mechanical Properties Chart for the subtle Strength differences within each grade.

10

Hex Nuts, Heavy Hex Nuts, Jam nuts, Lock Nuts & Thin Hex Nuts

Property class	Material and heat treatment	Chemical composition limit (cast analysis, %)a
		C		P	S	Mn
		min.	max.	max.	max.	min.
10	CARBON STEEL QUENCHED AND TEMPERED	-	0.58	0.048	0.058	0.30

Mechanical or physical property	Vickers hardness HV			Brinell hardness HB			Rockwell hardness HRC
	min.	max.	min.		max.	min.		max.
M5 ≤ D ≤ M16	272	353	259		336	26		36
M16 < D ≤ M39	272	353	259		336	26		36

Thread Size (D)	Pitch (P)	Proof Loada (N)
M12	1.75	88500
M14	2	120800
M16	2	164900
M18	2.5	203500
M20	2.5	259700
M22	2.5	321200
M24	3	374200
M27	3	486500
M30	3.5	594700
M33	3.5	735600
M36	4	866000
M39	4	1035000