Product Details
Product Description
China factory direct supply carbon steel T-slot bolts class 8.8 with black finish. These specialized bolts feature a T-shaped head designed for use with T-slot tracks in machinery tables, workbenches, and industrial equipment. The black oxide finish provides basic corrosion resistance and a professional appearance. Class 8.8 strength ensures reliable performance in demanding applications. Perfect for CNC machines, welding tables, and fixture systems. Bulk discounts available for machinery manufacturers and industrial suppliers.
Technical Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Standard | DIN 508, ISO 299 | Head Type | T-Slot |
| Drive Type | Hex Socket | Thread Type | Metric Coarse |
| Property Class | 8.8 | Finish | Black Oxide |
| Material | Medium Carbon Steel | Tensile Strength | 800 MPa |
| Yield Strength | 640 MPa | Hardness | 22-32 HRC |
| Corrosion Resistance | Basic protection | Temperature Range | Standard |
Product Size (Popular Specifications)
Standard T-slot bolt specifications:
| T-Slot Size | Thread Size | Head Width (mm) | Head Height (mm) |
|---|---|---|---|
| 8 mm | M6 | 12 | 7 |
| 10 mm | M8 | 15 | 8 |
| 12 mm | M10 | 18 | 10 |
| 14 mm | M12 | 22 | 12 |
| 16 mm | M16 | 25 | 14 |
Note: Custom sizes available for OEM orders
Application Scenarios
T-Head Bolts (DIN 787 T-Slot Bolts) are designed for reliable fastening in various industrial environments. They are commonly used where strong clamping and precise positioning are required.
Typical applications include:
- CNC machine tables and workholding systems
- Welding fixtures and assembly jigs
- Industrial workbenches and tooling setups
- Metal fabrication and machinery assembly
- Automotive and heavy equipment installation
Their Grade 8.8 carbon steel construction ensures high strength and durability, while the black oxide finish provides additional corrosion protection in demanding workplaces.
Frequently Asked Questions (B2B-oriented)
A: Choose the T-slot bolt size according to the slot width, thread size, and required clamping force. For precision fixtures or CNC tables, ensure the bolt fits the T-slot tightly to prevent lateral movement and vibration during operation.
A: Grade 8.8 carbon steel offers higher tensile strength and load capacity, ideal for heavy-duty or high-torque applications. Stainless steel is preferred in corrosive or outdoor environments, but typically provides lower mechanical strength compared to Grade 8.8.
A: Yes, but compatibility depends on the slot width and thread pitch of the extrusion profile (e.g., 8mm, 10mm, or 12mm slots). Always check the profile manufacturer’s specification to ensure a secure and accurate fit.
A: In addition to black oxide, we can supply zinc-plated, hot-dip galvanized, or plain finish options. The coating choice should match the working environment—black oxide for indoor dry use, zinc or HDG for humid or outdoor applications.
A: Use calibrated torque wrenches and hardened washers to maintain uniform tightening force. Regularly inspect bolt heads and threads for wear, especially under repetitive assembly cycles or high load conditions. Lubrication can also reduce galling and improve tightening consistency.