Metal Screw

M2.5 M3 M4 Hexagon Socket Head Metal Screws With Waisted Shank DIN796(E) Stainless Steel A2-70 A2-80 A4-70 A4-80 Plain Polished Product Description Non-detachable bolts, also known as anti-drop bolts or self-locking screws, are designed to remain securely fastened to equipment even when loosened or removed. Their key feature is that they will not fall off the mounting plate or equipment even if they are not fully tightened, thereby reducing the risk of the bolt being lost or

Super Duplex Stainless Steel Dss 2507 2205 Torx Slot S Shaped One Way Pan Head Security Bolt Anti Theft Metal Screw Product Description This high‑end security bolt is manufactured from Super Duplex Stainless Steel grades SA182 F60 (2205), F61, F65, as well as 2507. These alloys provide outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking, even in warm chloride‑rich environments. The drive is a Torx slot combined with an S‑shaped recess – a non

St 3.5 Black Zinc Nickel Plating Ss201 304 316 316l Three Holes H Y Shaped Anti Theft Screw Customized Size And Shape Product Description This highly customisable anti‑theft screw series is based on an ST 3.5 self‑tapping thread (approx. 3.5mm diameter). The drive can be three holes (tri‑grove), H‑shape , or Y‑shape , depending on your security requirement. The finish is either black zinc plating or nickel plating – black zinc offers a dark, non‑reflective surface, while

Torx With Pin Drive Two Snake Eyes Flat Pan Csk Head Anti-theft Safety Tamper Proof Security Metal Screw Half-thread Product Description This versatile security screw is offered with a choice of two different tamper‑resistant drives: Torx with centre pin (pin‑in‑Torx) or two‑hole snake eyes . The head can be flat (countersunk), pan, or CSK (countersunk) depending on the application. A key feature is the half‑thread design – the upper portion of the shank is unthreaded, acting

F61 F65 2507 2205 Torx Pan Head Security Tapping Anti Theft Tapping Metal Screw Din14585 Product Description This anti‑theft screw combines a Torx drive (six‑lobe recess) with a tapping thread that forms its own mating threads in pre‑drilled holes, eliminating the need for tapping operations. The screw conforms to DIN14585 for tapping screws. Materials are high‑performance duplex and super duplex stainless steels: F61, F65, 2205, and 2507 . These alloys offer twice the yield

M8 M12 Stainless Steel Ss304 Ss316 Ss316l H Type Drive Pan Head Anti Theft Metal Screw Product Description This security screw features an H‑type drive – a recess shaped like the letter “H” – which requires a matching H‑bit for turning. The pan head provides a low profile with a flat bearing surface, suitable for general fastening. Manufactured from stainless steel SS304, SS316, or SS316L, these screws offer reliable corrosion resistance for outdoor and industrial use. M8 and

Y-shaped Triangular Anti Theft Metal Screw With Pin M3 M4 M5 Super Duplex Stainless Steel Dss Product Description This advanced security screw combines a Y‑shaped (triangular) drive with a central pin – often called “Y‑type pin‑in‑torx” or simply “triangular with pin”. The pin blocks standard triangular bits, requiring a special hollowed bit. Manufactured from Super Duplex Stainless Steel (DSS) , which offers superior strength and exceptional resistance to pitting, crevice

M6 M8 M10 Hexagon Hex Socket Button Head METAL Screw Assembled With Washer 304 316 316L Product Description This SEMS screw range integrates three popular head styles – hexagon head, hex socket head, and button head – with pre-assembled flat or spring washers that are captive on the thread. Manufactured from high‑quality stainless steel including SS304, SS316, SS316L, as well as AISI, SUS and ANSI equivalents, these fasteners offer excellent corrosion resistance. The button

Astm A193 Plain Triangular Flat Csk Head Security Metal Screw Anti Theft Screw M3 M4 Product Description This security screw features a triangular recess drive with a flat countersunk (CSK) head for flush installation. Conforming to ASTM A193 material specifications, the screw is made from high‑quality alloy steel or stainless steel (plain finish as standard). The triangular drive is designed to accept only a matching triangular bit, providing effective anti‑theft protection.

M2.2 M2.3 Two Three Holes Snake Eyes Pig Nose Flat Round Head Security Metal Screw Hardened Carbon Steel Plated With Nickel Product Description This security screw series is offered in M2.2 and M2.3 diameters with either two holes (snake eyes) or three holes (tri‑grove style) drive configurations. The head can be flat (countersunk) or round, depending on the mounting requirement. The base material is hardened carbon steel, which is then plated with nickel for a bright,

M1.6 M1.7 Two Holes Snake Eyes Pig Nose Flat Head Anti Theft Security Metal Screw A2 A4 Ss Custom Size Product Description This ultra‑small security screw features a two‑hole drive , commonly known as “snake eyes” or “pig nose”. The flat head allows flush mounting, while the two round holes require a special two‑prong bit for turning. Manufactured from A2 (304) or A4 (316) stainless steel, these screws offer good corrosion resistance and non‑magnetic properties. Sizes

M2 Triangle Head Security Anti Theft Metal Screw ASTM A193 A914 B8 B8M B8T ASTM A453 GR660 A286 18-8 Plain Product Description This miniature triangle head security screw is designed for small‑scale yet critical anti‑tamper applications. The M2 diameter makes it suitable for compact electronic devices and precision instruments. The material range is exceptionally broad: ASTM A193 Grade B8 (304), B8M (316), B8T (321), ASTM A453 Grade 660 (A286 superalloy), and standard 18‑8

Oem M4 M5 M6 Stainless Steel Anti Theft Metal Screw Triangle Head Security Screw With Key 18-8 A286 Product Description Anti-theft screws are fasteners designed to prevent the theft of fixed installations that are left outdoors in public areas for extended periods. They are generally classified by structure and type into two categories: removable and non-removable. The former is further subdivided into various structures, including internal pentagonal anti-theft screws,

Metal Sems Slotted Phillips Torx Hex Socket Drive Pan Cap Truss Round Head Screw Assembled With Double Square Flat Spring Washer Product Description This is a “universal SEMS screw family" offering a wide choice of drives (Slotted, Phillips, Hex Socket, Torx), head styles (Pan, Round, Truss, Cap), and washer combinations (double flat washers, square washer, flat washer, spring washer). Materials include carbon steel (Grade 4.8 to 12.9) and stainless steel (A2/A4) with

H90 H80 H70 H62 H59 Brass Bronze Red Copper Combination Of Hex Meatl Screw With Nut And Washer Product Description This combination fastener is made from copper alloys: brass (grades H90, H80, H70, H62, H59), bronze or red copper. The bolt is a hex head screw to DIN933 (full thread) or DIN931 (partial thread), supplied together with a DIN934 hex nut and copper flat/spring washers. Copper alloys offer excellent electrical and thermal conductivity, non‑magnetic properties, low

2.2 2.9 3.5 B8 B8m B8t Astm A453 Gr660 A286 Cross Recessed Pan Head Tapping Screws And Plain Washer Product Description These miniature tapping screws (diameters 2.2mm, 2.9mm, 3.5mm) are designed for extreme high‑temperature service. The material conforms to ASTM A193 (B8, B8M, B8T) or ASTM A453 Grade 660 (A286 superalloy). These alloys retain significant strength up to 650‑700°C while resisting oxidation and creep. The screw has a cross recessed pan head and a plain flat

All Size A2 A4 Cross Recessed Hex Head Metal Sems Screw Assembled With Washer Din9021 Product Description This SEMS screw has a hex head with an additional cross recess (dual drive) and comes with a DIN9021 large diameter flat washer pre‑assembled. The large washer provides a much bigger bearing surface than standard washers, making it perfect for soft materials or thin sheet metal with oversized holes. The screw is made of A2 (304) or A4 (316) stainless steel, strength

M4 M5 Titanium Gr2 Gr5 Slotted Pan Head Screw Assembled With Washer Assortment Product Description This premium SEMS screw assortment is made from titanium alloys – Grade 2 (commercially pure) and Grade 5 (Ti‑6Al‑4V). Grade 2 offers excellent formability and corrosion resistance; Grade 5 provides strength comparable to alloy steel at 60% of the weight. The head is slotted pan head (cross recess is also possible; title says “Slotted Pan Head") with a pre‑assembled flat washer.

M4 M5 M6 Hexagon Socket Head Cap Screws With Lock Washer And Plain Washer Metal Sems Screw Din912 Product Description These SEMS screws feature a hexagon socket head cap (DIN912) combined with both a spring lock washer and a plain flat washer pre‑assembled. The spring washer sits above the flat washer to provide vibration resistance while the flat washer protects the workpiece surface. Made from carbon steel (8.8/10.9/12.9) or stainless steel (A2/A4) with finishes such as

M12 Iron Gr4.8 Gr8.8 Galvanized Hex Hexagon Head Metal Screw Assembled With Washer Nut Product Description This complete SEMS kit includes a hexagon head bolt, a matching hex nut, a DIN125 flat washer and a DIN127 spring washer. The bolt is made of carbon steel (iron) with property class 4.8 (general duty) or 8.8 (medium‑high strength). The surface is galvanized (electro‑ or hot‑dip) for corrosion resistance. The washers are pre‑assembled on the bolt but the nut is supplied