ASTM A307 Grade A Hex Cap Screws

ASTM A307 Grade A Hex Cap Screws

Short Description:

ASTM A307 Grade A Hex Bolts Hex Cap Screws Standard: ASME B18.2.1 (Various types of configuration are also available) Thread Size: 1/4”-4” with various lengths Grade: ASTM A307 Grade A Finish: Black Oxide, Zinc Plated, Hot Dip Galvanized, Dacromet, and so on Packing: Bulk about 25 kgs each carton, 36 cartons each pallet Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports Please feel free to contact us for more details. ...


  • FOB Price: US $0.5 - 9,999 / Piece
  • Min.Order Quantity: 100 Piece/Pieces
  • Supply Ability: 10000 Piece/Pieces per Month
  • Port: Ningbo
  • Payment Terms: L/C,D/A,D/P,T/T
  • Product Detail

    Product Tags

    Product Description

    ASTM A307 Grade A Hex Bolts Hex Cap Screws

    Standard: ASME B18.2.1

    (Various types of configuration are also available)

    Thread Size: 1/4”-4” with various lengths

    Grade: ASTM A307 Grade A

    Finish: Black Oxide, Zinc Plated, Hot Dip Galvanized, Dacromet, and so on

    Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

    Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports

    Please feel free to contact us for more details.

    Product Standards

    ASTM A307

    The ASTM A307 specification covers carbon steel bolts and studs ranging from 1/4″ through 4″ diameter. This is your everyday, run of the mill bolt specification often manufactured using A36 round bar. There are three grades A, B, and C* which denote tensile strength, configuration, and application. Refer to the Mechanical Properties Chart for the subtle strength differences within each grade.

    A307 Grades

    A Headed bolts, threaded rods and bent bolts intended for general applications.
    B Heavy hex bolts and studs intended for flanged joints in piping systems with cast iron flanges.
    C* Nonheaded anchor bolts, either bent or straight, intended for structural anchorage purposes. The end of a grade C anchor bolt intended to project from the concrete will be painted green for identification purposes. Permanent marking is a supplemental requirement. *As of August 2007, grade C has been replaced by specification F1554 grade 36. We will continue to supply grade C, if required by the project.

    A307 Mechanical Properties

    Grade Tensile, ksi Yield, min, ksi Elong %, min
    A 60 min -- 18
    B 60 - 100 -- 18
    C* 58 - 80 36 23

    A307 Chemical Properties

    Element Grade A Grade B
    Carbon, max 0.29% 0.29%
    Manganese, max 1.20% 1.20%
    Phosphorus, max 0.04% 0.04%
    Sulfur, max 0.15% 0.05%

    A307 Recommended Hardware

    Nuts Washers
    A307 Grades A & C* A307 Grade B
    1/4 - 1-1/2 1-5/8 - 4 1/4 - 4
    A563A Hex A563A Heavy Hex A563A Heavy Hex F844

    Product Certificates

    1
    2
    3
    4
    A325M Test Report
    A563M 10S Test Report

    About us

    Testing Lab

    1. Strength Testing Facility
    2. Impact Testing Facility
    3. Hardness Testing Facility
    5. Metallographic Analysis Facility

    Workshop

    1 Annealing Furnace
    2 Cold Forging Line
    3 Hot Forging Line
    4 Heat Treatment line
    5 Heat Treatment Line
    6 Thread Rolling  Line
    7 Thread Rolling  Line
    8 Thread Rolling  Line
    9 CNC Lathe Workshop
    10 CNC Machining Center

    Warehouse

    3 Carton and Pallet
    5 Threaded Rod Packing
    2 Metal Keg and Pallet
    6 Threaded Rod Packing
    4 Threaded Rod Packing
    1 Stock Shelf

  • Previous:
  • Next:

  • Related Products