Fastener Info
18 years professional hardware manufacturer - JM Hardware
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18 years professional hardware manufacturer - JM Hardware
Standard for Nut Grade Hardness...
Standard for Nut | Grade | Hardness | Dimensional style of nut | Nominal nut size | Proof Load Stress ksi | Head Marking | |
in. | Non-Zinc coated Nuts | Zinc coated Nuts | |||||
ISO 898-2 2009（DIN934） | 4 | over M16 117-302HV | 510MPa | / | |||
6 | up to M16 15-302HV，over M16 170-302HV | 600-720MPa | / | ||||
8 | M4 180-302，up to M16 200-302(HRB94-31.5)，up to M39 233-353HV | 800-920MPa |
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10 | 272-353HV | 1040-1060MPa |
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12 | 272-353HV | 1140-1170MPa |
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Since our establishment in 2006, JM has been adhering to the mission of creating maximum value for customers by providing differentiated services, building a stage for employees to succeed, and making a positive contribution to the society.
Address: Rm.27202, No.295 South Lingyan Road, Pudong,Shanghai,P.R.C
Whatsapp:+86 13661505088
Wechat:+86 18621005605
Email: xarella.huang@jm-fastener.com
