What does HWH mean in screws?

What does HWH mean in screws?

HWH: Hex Washer Slotted Head Screw.

What does HCS stand for in bolts?

Common Fastener Related Abbreviations

Abbreviation Definition
HCS Hex cap screw, also high Carbon steel
HD Head
H.D.G. Hot dip galvanized
HHCS Hex head cap screw, Also heavy hex cap screw

What does SFS mean on a bolt?

Stainless steel self-tapping screw color matched to OEM facade panels.

What does 9.8 on a bolt mean?

A metric bolt designated as ISO class 6.8 roughly corresponds in strength to an SAE Grade 2 bolt. Bolts of ISO class 8.8 and the slightly stronger class 9.8 roughly correspond to an SAE Grade 5 bolt. An ISO Class 10.9 bolt roughly corresponds to an SAE Grade 8 bolt.

What does 12.9 bolt mean?

A 12.9 bolt is one of the highest grade of bolts produced. Known for their high tensile strength, they are built with both hex and Torx heads and are available in zinc or chrome finishes. A 12.9 bolt is tightened with a torque wrench to 90 percent of its proof load.

What is HHCS bolt?

Hex Head Cap Screw (HHCS): In addition to the features of a hex bolt, these threaded fasteners have a washer face beneath the head and a chamfered thread point. The flat washer face provides a higher quality bearing surface than Hex Bolts. They also commonly have a unique thread length.

What is socket head screw?

: a screw having a recess or socket to fit a wrench for turning rather than a slot or external hexagonal or square shape.

What does NC stand for screws?

National Coarse Thread
Common Fastener Related Abbreviations

Abbreviation Meaning
NC National Coarse Thread
NF National Fine Thread
NT Nut
OH Oval Head

What is the name of the screw?

Fasteners with a non-tapered shank

American name British name
hex cap screw hex bolt
Fine adjustment screw
machine screw
plow bolt plough bolt

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