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DIN 186 Compliant | Secure T-Slot Engagement | Precision-Machined Heads
The Pyramid T-Head Bolt is the standard fastening component for machine tool tables, T-slot profiles, jigs, and workholding fixtures.Its T-shaped head slides smoothly into the slot and rotates into a locking position, providing secure, adjustable clamping without the need for separate retaining nuts.Manufactured to DIN 186 and ISO 299 specifications in high-strength carbon steel with stainless options, our T-head bolts deliver dependable performance in machining and inspection environments.
Precision T-Head:
· The accurately machined T-profile engages the slot wall across the full face, preventing lifting and rocking under clamping load.
Standard Compliance:
· Produced to DIN 186 / ISO 299 dimensional standards for compatibility with standard T-slot tables.
High-Strength Materials:
· Grade 8.8 or 10.9 carbon steel for demanding clamping forces, with stainless options for corrosive environments.
Accurate Threading:
· Rolled metric threads provide smooth nut engagement and consistent clamp-down force.
Square Shoulder Option:
· Available with a square head profile for maximum torque transmission in high-load fixtures.
| Parameter | Details |
| Standard | DIN 186 / ISO 299 / DIN 787 (hammer head) |
| Material | Carbon Steel (8.8/10.9), Stainless Steel |
| Thread Range | M6 to M36 |
| Head Profile | T-shape or square (hammer head) |
| Length Range | 20mm to 300mm |
| Thread Type | Full or partial thread |
| Strength Class | 8.8 / 10.9 or A2-70 / A4-80 |
| Surface Finish | Zinc Plated, Phosphated, Plain, or Black Oxide |
Carbon Steel:
· Grades 8.8 and 10.9 for high clamping forces in production machining.
Stainless Steel:
· A2 (304) and A4 (316) for corrosion-resistant workholding in wet environments.
Zinc Plating:
· Standard protective finish for machine-shop use.
Phosphate / Black Oxide:
· Non-glare finishes that reduce friction and suit inspection applications.
Machine Tool Tables:
1. Securing workpieces and fixtures to standard T-slot milling and drilling tables.
CNC Fixtures:
2. Rapid, adjustable clamping of workholding fixtures on machining centers.
Clamping Kits:
3. Replacement and custom bolts for modular clamping and kit systems.
Inspection Tables:
4. Positioning of gauges and measuring fixtures on granite and steel tables.
Assembly Benches:
5. Adjustable stops and guides on manual and semi-automated assembly lines.
Welding Jigs:
6. Heavy-duty clamping of weldments and fabricated components.
| Feature | Customization Range |
| Head Profile | T-shape or square head to match your slot geometry. |
| Length | Custom lengths beyond standard range produced to drawing. |
| Strength Class | 10.9 or higher grades for extreme clamping forces. |
| Finish | Zinc, phosphate, black oxide, or stainless options. |
| Thread Type | Fine pitch or partial thread per application. |
Pyramid Hardware Fasteners brings 15+ years of Egyptian manufacturing expertise to the global market. Our IATF 16949 certification reflects our commitment to automotive-grade quality controls in the production of precision fasteners. With a production capacity supported by 50+ specialized machines, we offer 70+ varieties of bolts. We serve clients across 30+ countries, boasting a 98.5% OTD record. Our strategic location in Egypt allows for rapid shipping to Europe, the Middle East, and Africa, with factory-direct pricing that saves our partners 15-30% compared to traditional supply chains.
Main Export Ports:
· Alexandria Port, Port Said Port, and Damietta Port.
Incoterms:
· FOB, CIF, CFR, and DDU.
Lead Times:
· Samples in 10-15 days; Bulk orders in 35-45 working days.
MOQ:
· 5000-10000 pieces per size (custom items quoted individually).
Packaging:
· Standard 25kg bulk cartons, small boxes, or palletized for large industrial orders.
Q: What is the difference between a T-head bolt and a hammer head bolt?
1. A: A T-head bolt has a rectangular T-profile; a hammer head (DIN 787) bolt has a square head that is hammered into the slot. Both are used in T-slot workholding.
Q: How do I select the right T-head bolt for my table?
2. A: Match the head dimensions to your slot width and the thread to your clamping needs. Our datasheet lists standard bolt/slot combinations (e.g., M12 bolt for 14mm slot).
Q: Are these bolts strong enough for heavy clamping?
3. A: Yes, we supply grade 10.9 T-head bolts for heavy machining and high clamping force applications.
Q: Can you supply stainless steel T-head bolts?
4. A: Yes, A2 and A4 stainless grades are available for corrosion-resistant and hygienic environments.
Q: Do you produce custom lengths?
5. A: Yes, we produce non-standard lengths and threads to drawing, with fast sample delivery.
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