Dalloyed, a leader in precision-engineered fasteners, takes pride in offering high-quality Hollow Allen Bolts that are reliable, durable, and versatile. what a Hollow Allen Bolt is, its advantages, and the various applications of high tensile Hollow Allen Bolts.

Bolt Size: M02 to M160, including custom sizes
Length: 3 mm to 200 mm
Threads: UNF, BSW, BSF, METRIC, UNC; ASME B1.1 (2A/3A – 2B/3B), B1.13M (6h–6G)
Standards: IS 1364, ISO 4014/4017/4018, DIN 933/931/558/601/7968/7990, EN 14399-4, BS 1083/1768, ASME B18.2.1/B18.5, JIS B1180
Forms: Hex, Square, Round, Threaded as required
Raw Material Sources: JSPL, Tata Steel, Mukund Steel, Usha Martin, etc.
Certification: ASTM/ASME dual certification; EN 10204/3.1; PED 97/23/EC; AD 2000 W2
Types: Hex Bolts, Flange Bolts, Lag Bolts, Eye Bolts, U-Bolts, T-Bolts, Countersunk Bolts
Threads Production: Rolled or cut, horizontal or vertical
Production Process: Hot forging (M24–M100), Cold forging (M2–M24), CNC machining for custom parts
Head Drives: Six-Lobe, Phillips, Slotted, Combination
Packing: Bulk, cartons, pallets, small boxes, per customer request
Surface Coating: PTFE, Phosphate, Teflon, Zinc, Hot-Dip Galvanized, Cadmium, Xylon
Finishes: Self-Colour, Passivated, BZP, HDG, Sherardized, Dacromet, Zinc-Nickel, Black Oxide (blue/black/yellow/white)

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