ASTM A307 A325 A449 Heavy Hex Bolts

/ASTM A307 A325 A449 Heavy Hex Bolts
  • ASTM A307 A325 A449 Heavy Hex Bolts

ASTM A307 A325 A449 Heavy Hex Bolts, Black Oxide Carbon Steel Hex Bolts, bolts, studs, rivets, pins, washers, stamping & tooling parts, Steel Socket Cap Screw, Flat Head, Internal Hex Drive bolt China Manufacture low price aluminium hex bolts and nuts

Heavy Hex Bolts FEATURES
Specifications as per ANSI B18.2.1
Detailed dimensions as below table 3
Size: 3/8×2.1/2 inch
Grade ASTM A307 (type A)
Material: Carbon Steel
Surface: Black Oxide
Production Process: Material- Wire Resizing- Pre-treatment- Cold Forging- Thread Cutting-Tempering & Quenching (if needed)- Surface Treatment (Galvanizing)- Packing

More Options of Heavy Hex Bolt
Nominal Size (thread diameter) from 3/8 up to 1.1/4 inch
Bolt length from 3/8 up to 4 inch
Material Grade: SAE J429 Gr. 2, 5 and 8
ASTM A307, A325, A449
Material: C1020, C1035, C1045 Cr40Mo, CR42Mo
Other standard and Customized specifications negotiable
Surface can be PL, ZP, BZP, YZP, HGD, nickle

Packaging & Shipping
Bulk Packed in Standard Cartons or Bags
(Small box or poly bag, plastic bucket, extra cost required)
Master Carton 25x23x16cm
Standard Pallet 95x82x85cm Or as customer’s requirement


Q1: Are you a manufacturer or trading company?
A: We are manufacturer for bolts, studs, rivets, pins, washers, stamping & tooling parts, we have long-term associated parteners that can provide wide range of fasteners.
Q2: What kind of material you used for producing the bolt?
A: We using carbon steels (low and medium carbon, alloy steels), stainless steel and brass.
Q3: Do you produce standard or non standard bolt?
A: We have regular production for ANSI and DIN standard bolts, while we also make customized bolts and stud.
Q4: How to ensure that every process’s quality?
A: We have our in-house QC daily and hire third party for randomly inspection.
Q5: Can you provide samples?
A: For our regular products, we offer free samples. For customized bolts, tooling and moulding charges need. All free samples not including its courier charge. Stainless Steel Allen Head Bolt

  • Customized is Available
  • Affordable Price
  • Quality Guaranteed
  • T/T or L/C Accepted
  • Other Payment Accepted
  • Fast Shipping, Worldwide Delivery
  • 24-Hours Excellent Customer Service
  • Offer Free Fastener Solution
  • Bulk Discounts for Larger Order

Product Range

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