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Fastener Manufacturing — Socket Cap Screws, Set Screws, Studs & Custom Bolts

DIN 912 socket cap, DIN 7991 countersunk, DIN 913-915 set screws, studs & custom bolts: 16 families, 171 types. ⌀1–20 mm CNC Swiss turning. Get a quote.

Manufacturing Scope

Fasteners are threaded precision-turned parts that removably join two components in machinery, mold, automotive and general assembly work. This category holds 16 families and 171 types: DIN 912 socket head cap screws, DIN 84 cheese head screws, DIN 7991 countersunk screws, DIN 914 cone-point, DIN 913 flat-point and DIN 915 dog-point set screws, DIN 939 studs, double-end and long studs, flanged, chamfered-end and shoulder bolts, plus knurled thumb screws. We machine steel, stainless steel, brass and aluminium; on outer diameters and threads we hold h6/H7 class and, where required, tolerances down to ±0.01 mm, controlling end chamfers and knurls. Every part is turned on a Goodway SW-20 CNC Swiss lathe within a ⌀1–20 mm bar range in a single setup. Beyond the 171 standard types we also produce custom sizes from a technical drawing or a sample. Pricing is by quotation: send your drawing or sample and we prepare a quote based on dimensions, tolerance and quantity.

Threading defines this category: 171 of the 171 variants (100%) carry a thread. The full operation mix is 171× thread turning, 31× hex flat milling, 67× axial bore, 32× taper turning, 21× knurling, all of it completed in one setup on parts 6–138 mm long.

Everything here is held to 3 tolerance classes (6g, f7, h6), and 100% of the variants map to a DIN or ISO standard. The highest length-to-diameter ratio in the category belongs to BAGB-TES-04 at L/D 12.2 — the slenderness a sliding-head lathe is built for.

Every part is CNC-turned to your drawing — series, small batches and custom turned parts. Send your drawing (PDF/DWG/STEP) for a quote.

Part Families

Socket Head Cap Screw DIN 912Cylinder head hex socket cap screw for high-strength fastening.11 types⌀4.5–18 mmOpen the code & size table →Cheese Head Screw DIN 84Slotted cheese head screw for precision assembly applications.11 types⌀3.8–13 mmOpen the code & size table →Countersunk Screw DIN 7991Hex socket countersunk screw with 90 degree flush-mount head.11 types⌀5.5–20 mmOpen the code & size table →Set Screw Cone Point DIN 914Hex socket cone-point set screw that bites into shaft for locking.11 types⌀3–10 mmOpen the code & size table →Set Screw Flat Point DIN 913Hex socket flat-point set screw for clamping without surface damage.12 types⌀3–12 mmOpen the code & size table →Set Screw Dog Point DIN 915Hex socket dog-point set screw for locating into a mating bore.11 types⌀3–10 mmOpen the code & size table →Double-End Stud DIN 939Double-threaded stud with plain center shank for stud connections.11 types⌀4–12 mmOpen the code & size table →Knurled Thumb ScrewHand-tightened knurled head screw for tool-free adjustments.11 types⌀8–18 mmOpen the code & size table →Flanged BoltFastening bolt with an integrated wide flange under the head that distributes bearing load.10 types⌀12–20 mmOpen the code & size table →Chamfer-Tip BoltHex-headed precision bolt with a cone-chamfered thread tip for easy thread starting.11 types⌀6.4–19.6 mmOpen the code & size table →Shoulder BoltBolt with a precision-ground cylindrical shoulder and smaller threaded end acting as a pivot pin.10 types⌀6.4–16 mmOpen the code & size table →Double-End StudStud threaded on both ends with a plain shank between, one end seated into the body.10 types⌀4–10 mmOpen the code & size table →Tap-End StudLong stud with a short interference-fit thread on one end and a longer nut thread on the other.10 types⌀5–12 mmOpen the code & size table →Set ScrewHeadless fully threaded set screw with internal hex drive and cone point to lock a shaft.11 types⌀3–10 mmOpen the code & size table →Dowel Support ScrewStepped screw with a precision cylindrical dowel end and a threaded end for locating and support.10 types⌀4–10 mmOpen the code & size table →Knurled Thumb ScrewScrew with a knurled cylindrical head gripped and tightened by hand for tool-free assembly.10 types⌀8–18 mmOpen the code & size table →

Parts are turned from bar stock on a Goodway SW-20 CNC Swiss lathe. The guide bushing keeps deflection minimal on slender, long parts, and threads, end chamfers and knurls are machined in one setup. This gives high repeatability and dimensional stability on socket screws, set screws and studs.

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