Hebei Kappa Metal Products Co., Ltd. is one of the most reliable manufacturers and suppliers of din913 hexagon socket set screws with flat point in China. Welcome to buy bulk high quality din913 hexagon socket set screws with flat point made in China here from our factory. If you have any enquiry about cooperation, please feel free to email us.
Product Overview
Helping you purchase the most suitable fastener for your project
Product Definition
DIN 913 hexagon socket flat‑point set screws are headless fasteners with inner‑hex drive. Its flat end avoids scratches or dents on precision‑machined surfaces.
Application & Material Options
Widely used for shaft sleeves, jigs and precision instruments. Carbon‑steel and stainless‑steel grades are available for different strength and corrosion‑resistance needs.
Working Principle
The flat face closely presses against parts to create friction for axial positioning and fine gap adjustment. Inner hex socket ensures stable torque during installation.
Practical Selection Tip
The flat tip cannot bite into metal and works only for positioning. Choose DIN914 cone‑point set screw for heavy‑load anti‑rotation applications.
Set Screw End‑Type Comparison
Choosing the correct tip is critical for reliable assembly. These four widely‑used socket set screws look similar but perform quite differently in real‑world equipment.
| products |  |  |  |  |
| Item | DIN913 Flat point | DIN914 cone point | DIN915 Dog point | DIN916 Cup point |
| End Feature | Fully flat smooth end | Sharp pointed cone tip | Extended solid cylindrical pin | Circular concave cup tip |
| Working Principle | Press by full‑surface friction | Sharp tip bites into metal surface | Cylindrical peg locks into pre‑drilled hole | Cup edge digs into pre‑made dimple |
| Typical Use | Positioning, protect finished workpiece surface | Anti‑rotation locking for general shaft assembly | Lock against heavy shear force, prevent axial slip | Anti‑slip locking for shafts with pre‑pressed dimples |
| Limitation | Cannot bite metal, only for positioning | Will leave indentation on finished parts | Requires pre‑machined hole on mating part | Needs matching dimple on counterpart component |
Installation Steps | Proper Assembly for DIN913 Flat‑Point Set Screw
Correct installation helps protect workpiece surfaces and achieve stable positioning. Follow these simple steps for on‑site assembly.
Prepare mating parts
Make sure the threaded hole is clean and free of chips or debris. The mating surface should be smooth to get full flat‑face contact.
Insert set screw
Screw the DIN913 set screw into the tapped hole by hand until its flat end touches the workpiece surface. Do not over‑tighten at this stage.
Use matching inner‑hex wrench to tighten gradually. Rely on flat‑face friction for positioning; do not force the tip to dig into the metal surface.
Verify the part is fixed in place. For fine adjustment, loosen slightly and re‑position before final tightening.
Frequently Asked Questions
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Is DIN 913 the same as ISO 4026?
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Yes. DIN 913 corresponds to ISO 4026 for socket set screws with flat point, with the dimensional standards being interchangeable.
What materials are available for DIN 913 set screws?
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Carbon/Alloy Steel and Stainless Steel such as A2 and A4
What surface finishes are offered?
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Black oxide, zinc plating. Stainless steel products come with passivation treatment.
Do you accept custom non‑standard set screw sizes?
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Yes, custom dimensions, special threads and drawings are available, subject to MOQ requirements.
What payment terms do you accept?
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We accept T/T, WeChat Pay and Alipay. For bulk orders, standard term is 30% deposit upon order confirmation
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