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HIGH TENSILE, STAINLESS & MILD STEEL*NEW - HEX HEAD BOLTS & SCREWS

SIZE RANGE : DIA : M 4 TO M 20 - LENGTH : 10 MM TO 165 MM (IN METRIC)
SIZE RANGE : DIA : 1/4" TO 3/4" - LENGTH : 1/2" TO 6" (IN INCH)
HEX HEAD BOLTS & SCREWS (STANDARD & AS PER USER SPECIFICATION)

HEX HEAD BOLTS : HEX BOLTS HAVE HEXAGONAL HEADS AND MACHINE THREADS FOR USE WITH A NUT OR IN A TAPPED HOLE. ALSO KNOWN AS HEX CAP SCREWS OR MACHINE BOLTS. HEX HEAD BOLTS ARE ALSO KNOWN AS HALF THREAD BOLTS.

Hex bolt

HEX HEAD SCREWS : HEX BOLTS HAVE HEXAGONAL HEADS AND MACHINE THREADS FOR USE WITH A NUT OR IN A TAPPED HOLE. ALSO KNOWN AS HEX CAP SCREWS OR MACHINE BOLTS. HEX HEAD BOLTS ARE ALSO KNOWN AS FULL THREAD SCREWS.

Full thread tap bolt
HEAD MARKING GRADE & MATERIAL HEAD MARKING GRADE & MATERIAL  
Class 8.8 head marking

CLASS 8.8 - MEDIUM CARBON STEEL, QUENCHED AND TEMPERED

Grade 2 head marking

GRADE 2 - LOW OR MEDIUM CARBON STEEL

 
RELFA 8.8 RELFA 2
Class 10.9 head marking

CLASS 10.9 - ALLOY STEEL, QUENCHED AND TEMPERED

Grade 5 head marking

GRADE 5 - MEDIUM CARBON STEEL, QUENCHED AND TEMPERED

 
RELFA 10.9 RELFA 5
Class 12.9 head marking

CLASS 12.9 - ALLOY STEEL, QUENCHED AND TEMPERED

Grade 8 head marking

GRADE 8 - MEDIUM CARBON ALLOY STEEL, QUENCHED AND TEMPERED

 
RELFA 12.9 RELFA 8
 

GRADE R - MEDIUM CARBON STEEL, QUENCHED AND TEMPERED

 
RELFA R

COATINGS

BLACK - SELF COLOR : FASTENERS WITH "AS PRODUCED" FINISH HAVING AN OIL RESIDUE TO PROVIDE SHELF LIFE OF THE PRODUCT.

ZINC PLATING : FASTENERS ARE ELECTRO - PLATED WITH ZINC FOR BETTER CORROSION RESISTANCE WITH SHINY SILVER OR GOLDEN APPEARANCE REFERRED TO AS WHITE OR YELLOW ZINC PLATING.

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