Product Overview
The T-Bolt is a specialized fastener engineered for use with T-slotted aluminum extrusions and machine tool tables. Its design features a distinctive T-shaped head that slides into and engages with the undercut profile of a T-slot, allowing for strong, secure, and infinitely adjustable linear positioning along the slot. This makes it the fundamental component in constructing modular frames, workholding setups, guarding systems, and automated machinery.
Key Advantages
Infinite Adjustability: The T-head slides freely within the slot before tightening, enabling precise and flexible positioning.
Secure Locking: When tightened with a mating nut (typically a flange nut), the head engages the underside of the slot, creating a powerful, non-slip clamping force.
High Load Capacity: The T-head design provides a large bearing surface against the slot, distributing load effectively for robust connections.
Versatility: The universal design is compatible with industry-standard T-slots (metric and imperial), making it a cornerstone of modular construction.
Rapid Assembly/Disassembly: Enables quick reconfiguration of structures without drilling or welding.
Material Specifications & Grades
| Material Standard | Grade / Class | Typical Tensile Strength | Core Hardness | Characteristics & Application |
|---|---|---|---|---|
| Medium Carbon Steel | Grade 8.8 | 800 MPa | HRC 22-32 | General purpose, quenched & tempered. For most structural framing. |
| Alloy Steel | Grade 10.9 / 12.9 | 1040 / 1220 MPa | HRC 33-44 | High-strength for demanding applications and critical load-bearing joints. |
| Stainless Steel | A2-70 / A4-80 | 700 MPa (min) | – | AISI 304 (A2) & 316 (A4). For corrosive environments, food/chem processing. |
| Aluminum Alloy | 6061-T6 | 290 MPa (min) | – | Lightweight, corrosion-resistant. For non-magnetic or lightweight structures. |
Product Series & Dimensional Standards
Standard T-Bolts: Designed to fit standard T-slot profiles (e.g., 6mm, 8mm, 10mm, 1/2″, 5/8″ slots). Key dimensions include T-head width and neck length.
Shoulder T-Bolts: Feature a precision-ground shoulder under the head for exact alignment and to prevent thread damage in the slot.
T-Slot Nuts: Often paired with flanged hex nuts or hammer nuts for easy hand tightening in confined spaces.
Size Range: Threads: M5 to M20, 1/4″-20 to 3/4″-10. T-Head: Compatible with slot sizes from 6mm to 25mm (or equivalent imperial).
Available Surface Finishes
| Finish Type | Standard / Process | Key Benefit |
|---|---|---|
| Plain / Electro-Zinc Plated (Blue/Trivalent) | ASTM B633 | Standard finish, economical protection against rust. |
| Hot-Dip Galvanized | ASTM A153 | Thick, durable coating for outdoor or highly corrosive environments. |
| Yellow Zinc Plated | ASTM B633 | Enhanced corrosion resistance compared to blue zinc, good appearance. |
| Black Oxide/Phosphate | MIL-DTL-13924 | Good wear resistance, reduces light reflection, aids in break-in. |
| Geomet® / Zinc-Flake Coating | Proprietary (e.g., Delta Protekt) | Premium Performance. Superior corrosion resistance (>500 hrs salt spray), excellent friction control, RoHS compliant. |
| Passivation (Stainless Steel) | ASTM A967 | Enhances the natural corrosion resistance of stainless steel. |
Installation & Usage Notes
Slot Compatibility: Critical to match the T-head dimensions precisely to the slot width and undercut for proper engagement and maximum strength.
Recommended Hardware: Always use with a hardened washer and a flange nut or a T-slot nut to apply clamping force effectively without damaging the extrusion.
Torque Application: Tighten evenly to recommended torque values. Avoid over-torquing, which can distort the aluminum slot.
Quality Assurance
Our T-Bolts are manufactured under a certified ISO 9001:2015 quality management system. Production includes dimensional verification of critical features (head dimensions, thread fit) and mechanical property testing for graded products. Material traceability is maintained.
Manufacturing Partner
Our T-Bolts are supplied by Hebei Wohe Fastener Manufacturing Co., Ltd., a manufacturer with specialized expertise in forming and machining. Our facility utilizes precision forging and machining processes to ensure the accurate T-head profile and consistent thread quality required for reliable performance in modular framing systems, automation equipment, and industrial workholding applications globally.
Availability: Comprehensive range of sizes for standard T-slots.
Customization: Available in special lengths, non-standard T-head sizes, and unique materials/coatings.
MOQ: Standard items: from 1,000 pieces. Custom specifications are negotiable.
Lead Time: Standard items: 12-18 days. Custom orders: quoted upon specification confirmation.
Note: Proper assembly requires the T-bolt to be inserted into the slot from the end of the extrusion or through a milled access hole. Always verify the compatibility of the T-bolt head with your specific T-slot profile before full-scale assembly. Specifications are subject to change without notice.
