DIN913 Flat Point Set Screws
DIN 913 is a practical choice when a set screw needs to hold a component while keeping the contact with its surface relatively gentle. Its flat-ended tip creates a wider contact area than pointed set screws, allowing the clamping force to be spread over the mating surface rather than concentrated at a single point. This makes the design useful for adjustable parts, guides, fixtures, collars, machine components, and positioning mechanisms that may need to be loosened, repositioned, and secured again during assembly or maintenance. The flat point is particularly useful when repeated adjustment is expected and visible damage to the mating surface should be minimized.
An internal hexagon drive keeps the fastener compact and allows tightening with a hex key even when the surrounding installation space is limited. Depending on the working environment, DIN 913 can be supplied in carbon steel, alloy steel, or stainless steel, with suitable surface finishes and material conditions. The choice of point style should follow the way the screw contacts the mating part. DIN 913 is suited to broad surface contact; DIN 914 is intended for concentrated cone-point engagement; DIN 915 is designed to enter a locating hole or groove; and DIN 916 provides a cup-shaped contact for gripping the mating surface.
Specification:
DIN 913 Flat Point Set Screws are specified by their thread size, length, flat point geometry, internal hexagon drive, material, and surface finish. Steel and stainless-steel versions can be selected according to the required mechanical performance, corrosion resistance, and service environment. The current international reference is ISO 4026:2026, which covers flat-point hexagon socket set screws. For steel fasteners, mechanical properties can be specified according to ISO 898-5, while stainless-steel versions follow the applicable requirements of ISO 3506-3.
Selection Note: DIN 913 is intended primarily for positioning and clamping rather than tensile loading. Where the mating surface must remain largely undamaged, the flat point offers a broader contact area than cone- or dog-point designs.
| Item | Specification |
| Standard | DIN913 |
| Product Type | Hexgaon Socket Set Screw with Flat Point |
| Thread | Metric Coarse |
| Thread Tolerance | 6g |
| Size Range | M1.4-M24 |
| Drive | Internal Hexagon |
| Point Type | Flat Point |
| Material | Carbon Steel,Alloy Steel,Stainless Steel |
| Steel Mechanical Standard | ISO898-5 |
| Stainless Steel Mechanical Standard | ISO3506-3 |
| Surface Treatment | Black Oxidation,Zinc Plated,Bright Finish,Passivation |
| Inspection | Dimesions,Thread,Hardness,Coating |
- RELATED WASHER LISTS:
- DIN125 Flat Washer
- DIN127 Spring Lock Washer
- F436 Hardened Steel Washers
- DIN9021 Large Washer
- ASME/ANSI B 18.21.1 (USS) Flat Washer
- ASME/ANSI B 18.21.1 (SAE) Flat Washer
- ASME/ANSI B18.21.1 Helical Spring-Lock Washer
- DIN25201 Stainless Steel Double Fold Self-locking Washer
- DIN6797A Stainless Steel External Teeth Lock Washers
- Stainless Steel DIN6797J Internal Teeth Lock Washers
Dimension Chart of DIN913 Flat Point Set Screws:
The dimension chart provides the key measurements for selecting a DIN 913 set screw, including thread diameter, overall length, flat point diameter, and internal hexagon size. When choosing the screw length, both the threaded-hole depth and the required clamping position should be considered. For assemblies where the component will be adjusted or repositioned, the flat point diameter and available contact area are also important. Standard dimensions can be selected from the chart, while special sizes or modified dimensions can be produced according to customer drawings.
| Mon | M1.4 | M1.6 | M1.8 | M2 | M2.5 | M3 | M4 | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M18 | M20 | M22 | M24 |
| P | 0.3 | 0.35 | 0.35 | 0.4 | 0.45 | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 |
| dp max | 0.7 | 0.8 | 0.9 | 1 | 1.5 | 2 | 2.5 | 3.5 | 4 | 5.5 | 7 | 8.5 | 10 | 12 | 13 | 15 | 17 | 18 |
| dp min | 0.45 | 0.55 | 0.65 | 0.75 | 1.25 | 1.75 | 2.25 | 3.2 | 3.7 | 5.2 | 6.64 | 8.14 | 9.64 | 11.57 | 12.57 | 14.57 | 16.57 | 17.57 |
| e min | 0.803 | 0.803 | 0.803 | 1.003 | 1.427 | 1.73 | 2.3 | 2.87 | 3.44 | 4.58 | 5.72 | 6.86 | 6.86 | 9.15 | 11.43 | 11.43 | 13.72 | 13.72 |
| s min | 0.711 | 0.711 | 0.711 | 0.889 | 1.27 | 1.52 | 2.02 | 2.52 | 3.02 | 4.02 | 5.02 | 6.02 | 6.02 | 8.025 | 10.025 | 10.025 | 12.032 | 12.032 |
| s max | 0.724 | 0.724 | 0.724 | 0.902 | 1.295 | 1.545 | 2.045 | 2.56 | 3.08 | 4.095 | 5.095 | 6.095 | 6.095 | 8.115 | 10.115 | 10.115 | 12.142 | 12.142 |
| t min | 0.6 | 0.7 | 0.8 | 0.8 | 1.2 | 1.2 | 1.5 | 2 | 2 | 3 | 4 | 4.8 | 5.6 | 6.4 | 7.2 | 8 | 9 | 10 |
Application of DIN913 Flat Point Set Screws:
Adjustable Components & Guides
DIN 913 is well suited to adjustable guides, stops, collars, fixtures, and machine components that may need to be repositioned during setup or maintenance. The flat point provides a relatively broad contact area for repeated clamping.
Tooling & Production Fixtures
The flat-ended design is useful in jigs, tooling, production fixtures, and assembly equipment where components are frequently installed, adjusted, or removed. It can provide secure holding without relying on a sharp point to penetrate the mating surface.
Surface-Sensitive Mechanical Assemblies
DIN 913 can be considered for finished shafts, machined components, instrument parts, and other surfaces where concentrated indentation should be minimized. The wider flat contact distributes the clamping force more evenly than pointed set-screw designs.
Selection Tip: DIN 913 is generally a good choice when surface contact and adjustability are important. If the assembly has a prepared locating hole or groove, DIN 915 may be more suitable; if stronger penetration or mechanical engagement is required, DIN 914 can be considered.