DIN913 Hexagon Socket Set Screw Flat Point: Guide for Precision Mechanical Positioning Applications

● 2026-09-30 ● - ● Leave me a message

In precision mechanical manufacturing and industrial equipment assembly, positioning accuracy and non-damage fastening are core indicators that determine equipment operating stability and service life. Ordinary headed fasteners are easy to cause structural protrusion and motion interference, while pointed set screws will leave irreversible indentations on precision shaft surfaces, affecting equipment debugging and assembly precision. As a professional German standard precision fastener, DIN913 Hexagon Socket Set Screw Flat Point solves the above industry pain points perfectly. Adopting headless full-thread and flat-end contact structure, it realizes uniform stress locking and non-damage positioning, becoming the preferred fastener for high-precision mechanical limit, shaft fixing and equipment debugging. This article comprehensively introduces its structural advantages, material matching, applicable scenarios and selection guidelines, helping global engineering purchasers and mechanical designers complete accurate product selection.

DIN913 Hexagon Socket Set Screw Flat Point

Unique Structural Advantages of DIN913 Flat Point Set Screw


Different from conventional cone-point and cup-point set screws, DIN913 Hexagon Socket Set Screw Flat Point features a flat contact end and fully headless design, with core advantages that are irreplaceable in precision assembly scenarios. Firstly, the flat-end structure forms a large and uniform contact surface with the workpiece, which disperses locking pressure evenly, avoids local stress concentration, and will not scratch or dent precision polished shafts, aluminum alloy parts, copper accessories and tooling surfaces. Secondly, the headless embedded design allows the entire screw to be completely screwed into the threaded hole without protruding, effectively eliminating component motion interference and realizing ultra-compact structural assembly.

In addition, the product adopts standard full-thread rolling technology, with precise thread tolerance, smooth screwing and stable locking performance. It supports repeated disassembly, adjustment and debugging, which greatly improves the flexibility of equipment assembly and later maintenance. Compared with other types of set screws, it is more suitable for working conditions requiring high positioning accuracy and frequent position calibration.

Material & Surface Treatment Matching for Different Working Conditions

To adapt to diverse industrial environments and load requirements, DIN913 Hexagon Socket Set Screw Flat Point provides two mainstream material grades and matched surface treatments, covering indoor dry, humid outdoor and light corrosive working scenarios. Each combination is strictly produced in accordance with DIN standard mechanical properties to ensure stable batch quality.

Material Grade
Tensile Strength

Hardness Range

Carbon Steel 45#
Min 600MPa
HRC 22~32
Stainless Steel A2-70
Min 700MPa
HV 200~260
DIN913 Hexagon Socket Set Screw Flat Point

Core Application Scenarios in Precision Mechanical Positioning

DIN913 Hexagon Socket Set Screw Flat Point is widely applied in high-precision assembly fields that require hidden installation, adjustable positioning and non-damage locking, covering automation equipment, precision machine tools, optical instruments, molds and automotive auxiliary components.


Precision Automation Equipment & Machine Tools

It is used for positioning and limiting precision shafts, gears, bearings and spacer sleeves of linear sliding tables and machining centers. The flat-end non-damage design protects polished shaft surfaces, and the stable locking effect effectively prevents part displacement caused by long-term equipment vibration, ensuring consistent machining accuracy.

Optical Instruments & Testing Tooling

High-precision detection jigs, optical brackets and sensor fixing structures have extremely strict requirements for surface protection. This flat point set screw will not damage soft materials such as aluminum and copper, and supports repeated debugging and position calibration, which is the standard matching fastener for instrument assembly.

Mold & Tooling Fixture Assembly

Commonly used for mold insert positioning, limit locking and fixture adjustment. The headless embedded structure saves installation space, and the adjustable locking mode meets the frequent trial mold debugging and maintenance needs of mold factories.

Motor, Reducer & Automotive Auxiliary Parts

Suitable for positioning motor shaft couplings, reducer transmission components and automotive hidden limit structures. It adapts to long-term vibration working conditions, maintains stable positioning accuracy, and avoids abnormal noise and equipment failure caused by loose parts.

DIN913 Installation Torque Reference

Many engineering designers confuse different types of DIN standard set screws, resulting in positioning failure or workpiece damage. The following table lists recommended installation torque for common sizes, to help engineers control tightening force and avoid thread sliding or workpiece deformation.

Size Specification
Recommended Torque

Notes

M4
1.2 ~1.6 N·m

Do not over-tighten soft alloy shafts

M6
2.8 ~3.5 N·m

Suitable for general precision positioning

M8
5.0 ~6.2 N·m
Ideal for medium load limit assembly
DIN913 Hexagon Socket Set Screw Flat Point

Standard Packaging & Bulk Shipment Service


For bulk procurement of precision standard fasteners, stable quality and standardized export packaging are crucial for project delivery. All DIN913 Hexagon Socket Set Screw Flat Point products adopt professional export packaging: inner moisture-proof plastic bags prevent rust during sea transportation, and outer thickened cartons resist extrusion and collision. Bulk orders are fixed on solid wooden pallets to ensure safe long-distance transportation.

Each package is labeled with clear specifications, material grade, surface treatment and batch information, supporting customer inventory management and customs clearance. We support customized private labels and special packaging requirements, and provide complete factory inspection reports and material certification documents to meet engineering acceptance and export standards.

Why Choose Gangtong Zheli DIN913 Set Screws


Gangtong Zheli is a professional manufacturer focusing on DIN standard precision fasteners, with complete production and inspection systems for grub screws. We strictly control raw material incoming inspection, thread rolling precision and surface treatment processes for DIN913 Hexagon Socket Set Screw Flat Point, ensuring zero dimensional deviation and stable locking performance for each batch of products.

We have sufficient stock of conventional sizes, supporting fast delivery of sample orders and small trial orders. For large engineering bulk orders, we arrange production efficiently to guarantee on-time delivery. Meanwhile, we support non-standard customization of special sizes and provide one-stop services including product selection guidance, technical consultation and after-sales tracking, winning long-term trust from global mechanical manufacturers and hardware distributors.

FAQ


Q1: What is the core advantage of DIN913 flat point set screw?

A1: DIN913 Hexagon Socket Set Screw Flat Point adopts flat-end non-damage design, which will not scratch precision workpieces. The headless embedded structure avoids assembly interference, making it the best choice for precision mechanical positioning and adjustable locking.


Q2: Which is better, DIN913 or DIN916 set screw?

A2: DIN913 is suitable for high-precision, adjustable and non-damage positioning scenarios; DIN916 cup point set screw has stronger biting force but will damage workpiece surfaces, suitable for ordinary fixed locking scenarios.


Q3: Do you support customized non-standard sizes?

A3: Yes, we support customized special lengths and non-standard thread sizes of DIN913 Hexagon Socket Set Screw Flat Point to meet special engineering project needs.


Q4: What certifications can be provided for shipment?

A4: We can provide factory inspection reports, material test certificates and complete export documents to support project acceptance and customs clearance.








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