Cold heading Service


T head bolts, also known as T-bolts, are a type of fastener with a T-shaped head designed to provide a secure and stable connection in various applications. The head of a T-bolt has a flat top with a threaded shank extending downward from the center of the head, resembling the letter “T.” The flat top of the head allows for easy tightening with a wrench or other tools.

T-head bolts are commonly used in structural applications, such as in construction, machinery, and automotive industries, where a strong and reliable connection is required. They are often used in conjunction with T-slotted profiles or T-slotted extrusions, which have channels designed to accommodate the T-shaped heads of these bolts. This design allows for flexibility in attaching components, making them suitable for assembling frames, supports, and other structures.

Specification of T Head Bolt:

Product nameT Head Bolts
DiameterMetric: M5-M48
Imperial:1/4" to 2"
LengthMetric: Up to 800mm
Imperial: Up to 30"
Head TypeT Head
A2-70 A2-80 A4-70 A4-80
GradeSAE J429 GR.2/5/8
MaterialSteel/Stainless steel/Brass/Aluminum
Manufacturing Processwire drawing, cold heading/hot forging, thread rolling, heat treatment, surface treatment
Surface treatmentBlack Oxide Coating/Zinc Plating (Electroplating)/Hot-Dip Galvanizing/Mechanical Galvanizing/Dacromet Coating/Painting or Powder Coating
Application IndustryConstruction/Agricultural Machinery/Industrial Structures/Equipment and Machinery/Infrastructure

Manufacturing quality control of T Head Bolts:

Control MethodDetail
Material Inspection:Verify the material's composition, heat treatment, and quality upon receipt. Conduct metallurgical analysis to ensure the material properties meet the standards.
Process Control:Implement strict process control measures for heat treatment, machining, threading, and any other manufacturing steps. Maintain consistent process parameters to ensure uniform quality.
Inspection Points:Introduce inspection points at various stages of manufacturing to check for defects, dimensions, and quality. Inspect threading, dimensions, surface finish, and other critical parameters.
Sampling and Testing:Regularly sample products for testing, such as tensile testing, hardness testing, and metallurgical analysis, to ensure they meet the required specifications.
Thread Inspection:Thoroughly inspect threading using proper thread gauges to ensure accurate dimensions and fit with mating components.
Traceability:Implement a traceability system to track each fasteners journey from raw material to final product. This aids in accountability and recalls if necessary.