--- title: "Nylon Patch Screw M2-M12 Square Flat Head Security Screws" description: "Nylon Patch Screw M2-M12 Square Flat Head Security Screws — Security & Tamper-Resistant Screws. MOQ 1,000 pieces, US$12.00." url: https://engineeringhardware.com/product/nylon-patch-screw-m2-m12-square-flat-head-security-screws/ source: Engineering Hardware & Fasteners --- # Nylon Patch Screw M2-M12 Square Flat Head Security Screws [![Nylon Patch Screw M2-M12 Square Flat Head Security Screws](https://img.engineeringhardware.com/Nylon-Patch-Screw-M2-M12-Square-Flat-Head-Security-Screws.webp)](https://img.engineeringhardware.com/Nylon-Patch-Screw-M2-M12-Square-Flat-Head-Security-Screws.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Screws › Security & Tamper-Resistant Screws](https://engineeringhardware.com/fastener-products/screws/security-tamper-resistant-screws/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/nylon-patch-screw-m2-m12-square-flat-head-security-screws.md) Model no. **Nylon Patch Screw** US$12.00 / piece MOQ 1,000 pieces · Final price confirmed in your quote - **Material:** Carbon Steel - **Head Style:** Hexagonal - **Standard:** DIN, ANSI, GB, JIS, BSW, GOST - **Grade:** 12.9 - **Finish:** Hot Galvanizing - **Package Size:** 26.00cm * 24.00cm * 15.00cm - **Standards:** Our bolts comply with prominent standards such as DIN933/931, DIN6921, DIN912, DIN603, DIN7985, DIN7991, ASME/ANSI B18.2.1, ASME/ANSI B18.2.3.1M, GB, BSW, and ISO. Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Nylon%20Patch%20Screw%20M2-M12%20Square%20Flat%20Head%20Security%20Screws%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fnylon-patch-screw-m2-m12-square-flat-head-security-screws%2F) Specifications are as listed for this product. Engineering Hardware & Fasteners confirms ratings, mating parts, compatibility, packing and lead time with you before you order. ## Specifications | Customization | Available | | --- | --- | | Material | Carbon Steel | | Type | Hexagon Head | | Model NO. | Nylon Patch Screw | | Connection | Common Bolt | | Head Style | Hexagonal | | Standard | DIN, ANSI, GB, JIS, BSW, GOST | | Grade | 12.9 | | Application | Machinery, Chemical Industry, Environmental, Building | | Finish | Hot Galvanizing | | Transport Package | Cartons+Pallets | | Specification | M2-M12 | | Origin | China | | HS Code | 7318159090 | | Production Capacity | on Demand | | Package Size | 26.00cm * 24.00cm * 15.00cm | | Package Gross Weight | 23.000kg | | Standards | Our bolts comply with prominent standards such as DIN933/931, DIN6921, DIN912, DIN603, DIN7985, DIN7991, ASME/ANSI B18.2.1, ASME/ANSI B18.2.3.1M, GB, BSW, and ISO. | | RODS | We offer durable threaded rods per DIN975, DIN976, as well as threaded bars, DIN975 stud bolts, and B7 stud bolts. | | Category | [Security & Tamper-Resistant Screws](https://engineeringhardware.com/fastener-products/screws/security-tamper-resistant-screws/) | ## Technical parameters | Name | Nylon Patch Screw M1m2m3 Button Head Square Stainless Steel Thread Locked Screw Nylon Patch Screw | | --- | --- | | Place of Origin | Jiaxing, Zhejiang, China | | Size | M5-M100 or non-standard | | Finish | Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Magni,Geomet,H.D.G.,Electrophoresis etc. | | Test Equipments | Caliper, Go&No-go gauge, Tensile test machine, Hardness tester, Salt spraying tester, H.D.G thickness tester, 3D detector,Projector, Magnetic flaw detecte... | | Material | Carbon Steel, Alloy Steel, Stainless Steel | | Grade | ASTM Gr.2 Gr.5,A325,Gr.8; Class 8.8, 10.9, 12.9; A2-70, A4-70, A4-80.etc | | Standard | GB, DIN, ISO, ANSI/ASTM, BS, BSW, etc | | Non-standards | OEM is available, according to drawing or samples | | Samples | Samples are free. | | Package | bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand | | Payment | T/T,L/C | ## Description Nylon Patch Screw M2-M12 Square Flat Head Security Screws is part of our security & tamper-resistant screws range (Screws). ### Key details - **Type:** Hexagon Head - **Standard:** DIN, ANSI, GB, JIS, BSW, GOST - **Material:** Carbon Steel - **Grade:** 12.9 - **Head Style:** Hexagonal - **Finish:** Hot Galvanizing - **Connection:** Common Bolt - **Application:** Machinery, Chemical Industry, Environmental, Building Available configurations include material, head style, standard, grade and finish. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 1,000 pieces at US$12.00 per piece. Send one inquiry with the part number, quantity and destination, and Engineering Hardware & Fasteners confirms size, thread, material, grade, finish, price, lead time and shipping, checks the goods before dispatch and ships them to you. ## Frequently asked questions ### What is the minimum order quantity (MOQ) for Nylon Patch Screw M2-M12 Square Flat Head Security Screws? The listed minimum order is 1,000 pieces, at US$12.00 per piece. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size. ### What are the main specifications of Nylon Patch Screw M2-M12 Square Flat Head Security Screws? Type: Hexagon Head; Standard: DIN, ANSI, GB, JIS, BSW, GOST; Material: Carbon Steel; Grade: 12.9; Head Style: Hexagonal; Finish: Hot Galvanizing. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include material, head style, standard, grade and finish. Size, thread, length, material and grade, surface finish, head marking, packaging and labels can be quoted to your specification or drawing. ### What is the lead time and how is it shipped? Lead time depends on quantity and customization and is confirmed in your quote. Engineering Hardware & Fasteners checks the goods before dispatch and ships by express, air or sea; mixed orders can be consolidated in one shipment. ### Which other security & tamper-resistant screws are available? The Security & Tamper-Resistant Screws category lists 619 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/screws/security-tamper-resistant-screws/](https://engineeringhardware.com/fastener-products/screws/security-tamper-resistant-screws/) How we work ## Specified, checked and shipped by Engineering Hardware & Fasteners Engineering Hardware & Fasteners supplies bolts, screws, nuts, washers, anchors, rivets and fastening hardware to equipment makers, contractors, distributors and maintenance teams. Orders go through one controlled process: size, thread, material, grade and finish confirmed, samples approved, dimensions, thread fit and plating checked before packing, then packed for export — standard or made to drawing. - DIN, ISO, ASTM, ANSI, JIS and GB standard parts - Non-standard parts made to your drawing - Dimensions, thread gauges and plating checked before packing - Export cartons and pallets, consolidated mixed orders - Samples available for approval before mass production [![Production floor](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-01-production-floor-1024x683.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-01-production-floor.webp) Production floor [![Inspection bench](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-02-inspection-bench-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-02-inspection-bench.webp) Inspection bench [![Sorting & packing](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-03-sorting-and-packing-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-03-sorting-and-packing.webp) Sorting & packing [![Parts warehouse](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-04-parts-warehouse-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-04-parts-warehouse.webp) Parts warehouse [![Sample review](https://engineeringhardware.com/wp-content/uploads/2026/11/office-02-office-sample-review-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/office-02-office-sample-review.webp) Sample review [![Sales office](https://engineeringhardware.com/wp-content/uploads/2026/11/office-01-daily-sales-office-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/office-01-daily-sales-office.webp) Sales office [More about us →](https://engineeringhardware.com/about/) · [Request a sample or custom quote →](https://engineeringhardware.com/contact/) ## Request a quote for this product ## Related products [All Security & Tamper-Resistant Screws →](https://engineeringhardware.com/fastener-products/screws/security-tamper-resistant-screws/) [![Pan Head Anti-Theft Machine Screws SS304 SS316 Y-Type Pan Security Screws](https://img.engineeringhardware.com/Pan-Head-Anti-Theft-Machine-Screws-SS304-SS316-Y-Type-Pan-Security-Screws.webp)](https://engineeringhardware.com/product/pan-head-anti-theft-machine-screws-ss304-ss316-y-type-pan-security-screws/) Security & Tamper-Resistant Screws ### [Pan Head Anti-Theft Machine Screws SS304 SS316 Y-Type Pan Security Screws](https://engineeringhardware.com/product/pan-head-anti-theft-machine-screws-ss304-ss316-y-type-pan-security-screws/) Pan Head · DIN, GB, ANSI, JIS **US$0.0384 – 0.26**MOQ 10,000 pieces [![Tamper-Evident RFID Security Seal Tag, Long Range UHF Cable Tie for Fire Extinguisher & Container, One-Time Use RFID Tag](https://img.engineeringhardware.com/Tamper-Evident-RFID-Security-Seal-Tag-Long-Range-UHF-Cable-Tie-for-Fire-Extinguisher-Container-One-Time-Use-RFID-Tag.webp)](https://engineeringhardware.com/product/tamper-evident-rfid-security-seal-tag-long-range-uhf-cable-tie-for-fire-extinguisher/) Security & Tamper-Resistant Screws ### [Tamper-Evident RFID Security Seal Tag, Long Range UHF Cable Tie for Fire Extinguisher & Container, One-Time Use RFID Tag](https://engineeringhardware.com/product/tamper-evident-rfid-security-seal-tag-long-range-uhf-cable-tie-for-fire-extinguisher/) ABS · ISO **US$0.18 – 0.60**MOQ 500 pieces [![High-Quality Carbon Steel Round Composite Hexagonal Anti-Theft Nut](https://img.engineeringhardware.com/High-Quality-Carbon-Steel-Round-Composite-Hexagonal-Anti-Theft-Nut.webp)](https://engineeringhardware.com/product/high-quality-carbon-steel-round-composite-hexagonal-anti-theft-nut/) Security & Tamper-Resistant Screws ### [High-Quality Carbon Steel Round Composite Hexagonal Anti-Theft Nut](https://engineeringhardware.com/product/high-quality-carbon-steel-round-composite-hexagonal-anti-theft-nut/) Hexagon Head · DIN, ANSI, GB, JIS, GOST, BSW **US$0.12 – 0.18**MOQ 1,000 pieces [![Hex Thin Nut 5/16 M3 M4 M5 M6 Anti Theft Stainless Steel Round Nuts DIN934 Brass Hexagon Copper Hex Nut](https://img.engineeringhardware.com/Hex-Thin-Nut-5-16-M3-M4-M5-M6-Anti-Theft-Stainless-Steel-Round-Nuts-DIN934-Brass-Hexagon-Copper-Hex-Nut.webp)](https://engineeringhardware.com/product/hex-thin-nut-5-16-m3-m4-m5-m6-anti-theft-stainless-steel-round-nuts-din934-brass/) Security & Tamper-Resistant Screws ### [Hex Thin Nut 5/16 M3 M4 M5 M6 Anti Theft Stainless Steel Round Nuts DIN934 Brass Hexagon Copper Hex Nut](https://engineeringhardware.com/product/hex-thin-nut-5-16-m3-m4-m5-m6-anti-theft-stainless-steel-round-nuts-din934-brass/) Hexagon Head · DIN, ANSI, GB, JIS, GOST, BSW **US$0.072 – 0.12**MOQ 1,000 pieces [![China Factory DIN982 Special Types Anti Theft Hex Nuts Plastic Insert Nylon Lock Nuts](https://img.engineeringhardware.com/China-Factory-DIN982-Special-Types-Anti-Theft-Hex-Nuts-Plastic-Insert-Nylon-Lock-Nuts.webp)](https://engineeringhardware.com/product/china-factory-din982-special-types-anti-theft-hex-nuts-plastic-insert-nylon-lock-nuts/) Security & Tamper-Resistant Screws ### [China Factory DIN982 Special Types Anti Theft Hex Nuts Plastic Insert Nylon Lock Nuts](https://engineeringhardware.com/product/china-factory-din982-special-types-anti-theft-hex-nuts-plastic-insert-nylon-lock-nuts/) Hexagon Head · DIN **US$0.048 – 1.20**MOQ 1,000 pieces [![Customized Non-Standard Carbon Steel Large Flat Head Square Slot Anti-Theft Galvanized Screws](https://img.engineeringhardware.com/Customized-Non-Standard-Carbon-Steel-Large-Flat-Head-Square-Slot-Anti-Theft-Galvanized-Screws.webp)](https://engineeringhardware.com/product/customized-non-standard-carbon-steel-large-flat-head-square-slot-anti-theft/) Security & Tamper-Resistant Screws ### [Customized Non-Standard Carbon Steel Large Flat Head Square Slot Anti-Theft Galvanized Screws](https://engineeringhardware.com/product/customized-non-standard-carbon-steel-large-flat-head-square-slot-anti-theft/) Round Head · Carbon Steel **US$0.036 – 0.0456**MOQ 1,000 pieces [![Round Pan Head Torx Machine Screws Stainless Steel 304 316 Anti-Theft Security Pin](https://img.engineeringhardware.com/Round-Pan-Head-Torx-Machine-Screws-Stainless-Steel-304-316-Anti-Theft-Security-Pin.webp)](https://engineeringhardware.com/product/round-pan-head-torx-machine-screws-stainless-steel-304-316-anti-theft-security-pin/) Security & Tamper-Resistant Screws ### [Round Pan Head Torx Machine Screws Stainless Steel 304 316 Anti-Theft Security Pin](https://engineeringhardware.com/product/round-pan-head-torx-machine-screws-stainless-steel-304-316-anti-theft-security-pin/) Pan Head · DIN, GB, ANSI, JIS **US$1.20**MOQ 10,000 pieces [![Wholesale Custom Slotted Pan Head Round Head Machine Screws Brass Slotted Fillister Head Anti-Theft Locking Screw](https://img.engineeringhardware.com/Wholesale-Custom-Slotted-Pan-Head-Round-Head-Machine-Screws-Brass-Slotted-Fillister-Head-Anti-Theft-Locking-Screw.webp)](https://engineeringhardware.com/product/wholesale-custom-slotted-pan-head-round-head-machine-screws-brass-slotted-fillister/) Security & Tamper-Resistant Screws ### [Wholesale Custom Slotted Pan Head Round Head Machine Screws Brass Slotted Fillister Head Anti-Theft Locking Screw](https://engineeringhardware.com/product/wholesale-custom-slotted-pan-head-round-head-machine-screws-brass-slotted-fillister/) Flat/Fillister Head · DIN, GB, ANSI, BSW, JIS, GOST **US$0.27 – 0.69**MOQ 10,000 pieces **US$12.00**MOQ 1,000 piecesGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Nylon%20Patch%20Screw%20M2-M12%20Square%20Flat%20Head%20Security%20Screws%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fnylon-patch-screw-m2-m12-square-flat-head-security-screws%2F)