Beginning in 1984 KK ENTERPRISES, having a background in manufacturing Crash Barrier fastener just, With fifty employees and two cold heading machines, KK Enterprises began making exclusive Guardrail Bolts that would quickly become the number one choice for the industry engage in Vehicle Restraint systems.

Today, KK ENTERPRISES produces crash barrier Fasteners, Culvert Fasteners & Construction Fasteners under the brand of STAG for OEM & Industry. KK Enterprises manufactures and exports these Barrier Fasteners to all over the Europe, USA, Middle East, Africa, UAE & Australia.

In-house hot dip Galvanizing facility with workforce of 300 employees – KK ENTERPRISES become a leader in offering Crash Barrier Fasteners – both in smaller & longer lengths.

Our Fast Moving sizes for Crash Barrier Bolts / Guardrail Bolts – ASTM / DIN standards in inches & MM are as follows:

• M.16 x 27, M.16 x 32, & M.16 x 35 – 50mm & Hex Bolt with Big and small nuts.
• In Inches we do – 5/8 x 1.5” & 5/8 x 2" .

SPECIALIZE & NO.1 CHOICE FOR THE CUSTOMERS LOOKING FOR
CRASH BARRIER FASTENERS INCLUDES:

• BUTTON HEAD BOLTS, NUTS & WASHERS
• NIB BOLTS, NUTS & WASHERS
• POST BOLTS, NUTS & WASHERS
• SPLICE BOLTS, NUTS & WASHERS
• GUARDRAIL BOLTS, NUTS & WASHERS
• CARRIAGE BOLTS, NUTS & WASHERS

MEET THE FOLLOWING REQUIREMENTS
IN ASTM STANDARD

• DIMENSIONS CONFIRMING TO AASHTO M-180( SIZES MM & INCHES)
• BOLTS CONFORMING TO ASTM A-325 M(TYPE–1) 8S,
  ASTM A-307(GRADE A).
• NUTS CONFORMING TO ASTM A563M, CLASS 5, 8, 8S, 10, 10S.
• WASHERS CONFIRMING TO F463.
• HOT DIG GALVANIZING WILL CONFORM TO ASTM A – 153 M, M-232.

MEET THE FOLLOWING REQUIREMENTS
IN DIN STANDARD

• BOLTS CONFORMING TO DRAWINGS OR AS PER DIN STANDARDS ( DIN 607, DIN 603, DIN 931, DIN 933).
• GRADE 4.6, 5.6, 5.8, 6.8, 8.8, 10.9.
• NUTS CONFORMING TO ISO 4032 / 4034, DIN 555, 934. CLASS 5, 6, 8, 8S, 10, 10S.
• WASHERS CONFIRMING TO DIN 125.
• HOT DIG GALVANIZING SHALL CONFORM TO EN ISO 10684, DIN 267 PART 10.
• TOLEARANCES ACCORDING TO DRAWINGS & AS PER EN ISO 4759-1

Few Highlights

• AVAILABLE BOLTS DESIGNS ARE ASSEMBLED WITH ONE HEX NUT AND ONE WASHER
• BOLTS, WASHERS & NUTS ARE ALSO AVAILABLE SEPARATELY
• WE DO CUSTOMIZED DESIGNS OF THE FASTENERS AS PER THE DRAWINGS & SPECIFICATIONS
• WE DO CUP SQUARE BOLTS IN LONGER LENGTHS TOO
• SPECIAL WASHERS IN OVAL & IN SQ SQ PLATES