Product Description: Hex Head Bolts (Hex Cap Screws)

Product Summary

Our Hex Head Bolts – also known as hex cap screws or hexagon head bolts – are precision fasteners designed for high torque applications in structural, industrial, and heavy equipment assemblies. Available in Grade 2, Grade 5, Grade 8, and stainless steel 304/316, these bolts feature a forged hex head that accepts standard wrenches for reliable tightening. Full thread and partial thread options allow optimized performance for clamping or shear load scenarios. With finishes ranging from zinc plated to hot dip galvanized, our hex bolts provide consistent thread engagement, head marking traceability, and tensile strengths up to 150,000 psi.

Technical Specifications

Product Applications

Structural Steel Construction relies on hex head bolts for beam-to-column and beam-to-beam connections.

1. Steel building frame assembly – columns, rafters, and purlins

2. Bridge girder and truss connections (high strength structural bolts)

3. Highway sign and light pole base plates

4. Pre-engineered metal building erection

5. Transmission tower bolted joints

Heavy Equipment and Machinery demand high torque capability and shear strength.

1. Bulldozer, excavator, and crane assembly

2. Mining equipment – crushers, conveyors, and screens

3. Agricultural implements – plows, planters, and harvesters

4. Industrial press and stamping machine frames

5. Wind turbine tower and nacelle bolts

Automotive and Transportation use Grade 8 and stainless hex bolts for critical safety components.

1. Truck frame and suspension mounting

2. Engine block and transmission housing assembly

3. Trailer hitch and towing hardware

4. Railcar coupler and brake system fasteners

5. Heavy-duty axle and wheel hub connections

Flanged Joints and Pressure Vessels require heavy hex bolts with controlled torque.

1. Pipe flange bolting (ANSI/ASME B16.5)

2. Pressure vessel manway and head closures

3. Heat exchanger channel cover bolts

4. Pump and valve body mounting

5. Boiler access door fasteners

Infrastructure and Utilities benefit from corrosion-resistant finishes.

1. Water treatment plant piping supports

2. Bridge expansion joint hardware

3. Marine dock and pier structural connections

4. Solar panel array mounting frames

5. HVAC equipment base mounting

Product Advantages

Choose Hex Head Bolts for reliable torque transfer, strength traceability, and application-matched configurations.

1. High Torque Capacity: Hex head design accepts standard wrenches, sockets, or impact tools without cam-out.

2. Grade Markings: Radial lines on head (3 for Grade 5, 6 for Grade 8) allow visual strength verification.

3. Full or Partial Thread: Full thread for maximum thread engagement; partial thread with plain shank for shear applications.

4. Material Options: Low carbon (Grade 2), medium carbon heat treated (Grade 5), alloy steel (Grade 8), or stainless (304/316).

5. Corrosion Resistance: Zinc plating for indoor; hot dip galvanized or stainless 316 for outdoor/marine.

6. Dimensional Precision: Class 2A thread tolerance ensures smooth assembly with standard nuts and tapped holes.

7. Wide Size Range: From 1/4" to 2" diameter, lengths up to 24" – one source for most bolting needs.

8. Traceable Compliance: Manufactured to ASTM standards with mill test reports available.

9. Cost Effective: High volume production keeps pricing competitive without sacrificing quality.

10. Interchangeable: Standard head dimensions per ASME B18.2.1 fit all common hand and power tools.

    FAQ

    1. Are you trading company or manufacturer ?
    We are manufacturer ,You can see the certification.
    2. How long is your delivery time?
    Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
    3. Do you provide samples ? is it free or extra ?
    Yes, we could offer the sample for free charge but need pay the cost of freight.
    4. What is your terms of payment ?
    Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.