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T Metal BOLT Mushroom Head Anchor Screws High Quality Strength Steel BLACK DIN25193
Product Description
The DIN 25193 standard specifies a T-bolt with a D-shaped head. The head's cross-section features a distinctive flat on one side. This design allows the bolt to be inserted laterally into a matching D-shaped T-slot (or T-slot with a keyway) and then rotated 90 degrees. Upon rotation, the flat side of the head locks against a corresponding flat surface inside the slot, providing positive anti-rotation in the axial direction. This makes it a crucial fastener for heavy-duty and high-vibration applications.
Specifically engineered for heavy loads, it is commonly used in rail transportation (e.g., bogies, major component connections), heavy-duty machine tools, large stamping presses, injection molding machines, and mining machinery. These applications demand exceptional resistance to vibration and loosening.
Common Materials:
High-Strength Alloy Steel: Grades like 40Cr or 42CrMo, heat-treated (quenched and tempered) to achieve high property classes such as 8.8, 10.9, or 12.9. This is the primary choice for maximum load-bearing capacity.
Stainless Steel: For corrosion-prone environments (e.g., food processing, chemical, or outdoor equipment), A2-70 (304) or A4-80 (316) stainless steel is used.
Applications
Industry
Usage
Automotive
High-strength applications in engines, heavy-duty machinery, and bridge construction
Mechanical
Connecting mechanical parts, circuit boards, engines, transmissions in various industries
Energy
Connecting power generation equipment and transmission lines
Architectural
Building structures, shipbuilding, and petrochemical equipment
Key Features
Positive Anti-Rotation: The mating of the D-shaped head and slot provides a mechanical lock, preventing the bolt from rotating and loosening under severe vibration, ensuring supreme safety and reliability.
High Load Capacity: The large contact area between the head and the slot allows for even load distribution, enabling the bolt to withstand extremely high shear forces and preloads.
Convenient Installation: The bolt can be inserted laterally into the slot at any point, not just from the end, and then rotated to lock. This is particularly advantageous for the maintenance of large equipment.
Repeatable, Precise Positioning: The D-shape ensures the bolt is always oriented the same way within the slot, facilitating accurate repositioning of jigs and fixtures.
Company Information
Frequently Asked Questions
Q: Are you trading company or manufacturer?
A: We are factory and OEM are available.
Q: How long is your delivery time?
A: Generally 7-10 days if in stock, or 15-20 days if not in stock (depending on quantity).
Q: Do you provide samples? Is it free or extra?
A: Yes, we offer free samples but customers pay the freight cost.
Q: What are your payment terms?
A: 30% T/T in advance, balance before shipment or L/C.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2007
Total Annual:
15000000-20000000
Employee Number:
100~200
Ecer Certification:
Verified Supplier
Hunan Jiashan Hardware Tech as a branch company of J AND R METALWORK,established in 2007 and located in Changsha, Hunan, China.After almost 17 years management development and technical improvement, Jiashan is willing to be a leading supplier in hardware industry. Meanwhile, we are one of member of ... Hunan Jiashan Hardware Tech as a branch company of J AND R METALWORK,established in 2007 and located in Changsha, Hunan, China.After almost 17 years management development and technical improvement, Jiashan is willing to be a leading supplier in hardware industry. Meanwhile, we are one of member of ...