--- title: "Custom Flat Cap Screw Extended Silver Leg Bolt Round Head Captive Panel Screw Carriage Bolt Screws for Automotive Parts" description: "Custom Flat Cap Screw Extended Silver Leg Bolt Round Head Captive Panel Screw Carriage B… — Quarter-Turn, Captive & Panel Fasteners." url: https://engineeringhardware.com/product/custom-flat-cap-screw-extended-silver-leg-bolt-round-head-captive-panel-screw/ source: Engineering Hardware & Fasteners --- # Custom Flat Cap Screw Extended Silver Leg Bolt Round Head Captive Panel Screw Carriage Bolt Screws for Automotive Parts [![Custom Flat Cap Screw Extended Silver Leg Bolt Round Head Captive Panel Screw Carriage Bolt Screws for Automotive Parts](https://img.engineeringhardware.com/Custom-Flat-Cap-Screw-Extended-Silver-Leg-Bolt-Round-Head-Captive-Panel-Screw-Carriage-Bolt-Screws-for-Automotive-Parts.webp)](https://img.engineeringhardware.com/Custom-Flat-Cap-Screw-Extended-Silver-Leg-Bolt-Round-Head-Captive-Panel-Screw-Carriage-Bolt-Screws-for-Automotive-Parts.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Specialty Fasteners › Quarter-Turn, Captive & Panel Fasteners](https://engineeringhardware.com/fastener-products/specialty-fasteners/quarter-turn-captive-panel-fasteners/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/custom-flat-cap-screw-extended-silver-leg-bolt-round-head-captive-panel-screw.md) Model no. **SX20220601-824** | **US$0.12**5,000–19,999 pieces | **US$0.036**20,000+ pieces | | --- | --- | MOQ 5,000 pieces · Final price confirmed in your quote - **Material:** Stainless Steel - **Head Style:** Round - **Standard:** DIN - **Grade:** Custom Service - **Finish:** Hot Galvanizing - **Tolerance:** +/-0.01mm - **Package Size:** 2.00cm * 2.00cm * 2.00cm - **Inner Packing:** PE bag / EPE Foam Packing / Anti-Rust Paper Packing / Blister / SMT / Vacuum Packing / Plastic Box Packing / Color Box Packing. Outter Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Custom%20Flat%20Cap%20Screw%20Extended%20Silver%20Leg%20Bolt%20Round%20Head%20Captive%20Panel%20Screw%20Carriage%20Bolt%20Screws%20for%20Automotive%20Parts%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fcustom-flat-cap-screw-extended-silver-leg-bolt-round-head-captive-panel-screw%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 | Stainless Steel | | Type | Round Head | | Model NO. | SX20220601-824 | | Connection | Common Bolt | | Head Style | Round | | Standard | DIN | | Grade | Custom Service | | Application | Machinery, Chemical Industry, Environmental, Building, Custom Service | | Finish | Hot Galvanizing | | Tolerance | +/-0.01mm | | Dimensions | as Drawings or Samples | | Shipment Terms | Express /Air Freight /Sea Freight | | Service | Customized OEM ODM | | Drawing Format | Pdf, 2D/3D/Dwg/Igs/Step/Solidworks | | Quality Control | 100% Inspection Before Shipping | | Certificates | ISO9001:2015, IATF16949, RoHS, Reach, etc | | Transport Package | Inner Polybag, Outer Box | | Specification | Customized | | Origin | China | | Package Size | 2.00cm * 2.00cm * 2.00cm | | Package Gross Weight | 2.000kg | | Basic Information | Tolerance | | Inner Packing | PE bag / EPE Foam Packing / Anti-Rust Paper Packing / Blister / SMT / Vacuum Packing / Plastic Box Packing / Color Box Packing. Outter | | Packing | Stretch Film Packing / Carton / Pallet / Wood Case. | | One-stop purchasing service | Stamping part, CNC lathe part, CNC milling part, Springs, Shafts, fastener etc. | | Product certification | RoHS, HE, vailable. | | Management certification | ISO/9001: 2015 and IATF16949 Passed. | | Category | [Quarter-Turn, Captive & Panel Fasteners](https://engineeringhardware.com/fastener-products/specialty-fasteners/quarter-turn-captive-panel-fasteners/) | ## Technical parameters | Tolerance | 0.02~0.1mm. | | --- | --- | | Materials | Low, middle,high carbon steel / spring steel / Stainless steel 201, 301, 304, 316 / Aluminum / Brass / Bronze / Copper / Titanium / Plastic (PP, Nylon, PVC, APET) Brass or ABS,POM Ect And Customized raw material. | | Surface Finish | Heat treatment / Polishing,Electronic Polishing / (Zinc, nickel, chrome, tin, brass, glod, silver, titanium) Plating / Electrophoresis / Black Oxide / Hot-dip galvanizing / Powder Coating / Paint Coating / Blasting / Shot Blasting / Bead Basting / Anodizing / Phosphating / PAD Printing / Laser etching / Dacromet Coating / Enamel. | | Payment terms | Trade Assurance TT,paypal,Western Union,alipay,L/C. | | Packing Detail | Inner Packing: PE bag / EPE Foam Packing / Anti-Rust Paper Packing / Blister / SMT / Vacuum Packing / Plastic Box Packing / Color Box Packing. Outter Packing: Stretch Film Packing / Carton / Pallet / Wood Case. | ## Description Custom Flat Cap Screw Extended Silver Leg Bolt Round Head Captive Panel Screw Carriage Bolt Screws for Automotive Parts is part of our quarter-turn, captive & panel fasteners range (Specialty Fasteners). ### Key details - **Type:** Round Head - **Standard:** DIN - **Material:** Stainless Steel - **Grade:** Custom Service - **Head Style:** Round - **Finish:** Hot Galvanizing - **Connection:** Common Bolt - **Application:** Machinery, Chemical Industry, Environmental, Building, Custom Service 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 5,000 pieces at US$0.036 – 0.12 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 Custom Flat Cap Screw Extended Silver Leg Bolt Round Head Captive Panel Screw Carriage Bolt Screws for Automotive Parts? The listed minimum order is 5,000 pieces, at US$0.036 – 0.12 per piece. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size. ### How does the price change with quantity? Volume pricing: US$0.12 for 5,000–19,999 pieces; US$0.036 for 20,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of Custom Flat Cap Screw Extended Silver Leg Bolt Round Head Captive Panel Screw Carriage Bolt Screws for Automotive Parts? Type: Round Head; Standard: DIN; Material: Stainless Steel; Grade: Custom Service; Head Style: Round; 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 quarter-turn, captive & panel fasteners are available? The Quarter-Turn, Captive & Panel Fasteners category lists 403 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/specialty-fasteners/quarter-turn-captive-panel-fasteners/](https://engineeringhardware.com/fastener-products/specialty-fasteners/quarter-turn-captive-panel-fasteners/) 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 Quarter-Turn, Captive & Panel Fasteners →](https://engineeringhardware.com/fastener-products/specialty-fasteners/quarter-turn-captive-panel-fasteners/) [![Best Price Fasteners Stainless Steel M6 Hex Captive Screw with Good Service](https://img.engineeringhardware.com/Best-Price-Fasteners-Stainless-Steel-M6-Hex-Captive-Screw-with-Good-Service.webp)](https://engineeringhardware.com/product/best-price-fasteners-stainless-steel-m6-hex-captive-screw-with-good-service/) Quarter-Turn, Captive & Panel Fasteners ### [Best Price Fasteners Stainless Steel M6 Hex Captive Screw with Good Service](https://engineeringhardware.com/product/best-price-fasteners-stainless-steel-m6-hex-captive-screw-with-good-service/) Hexagon Head, Hexagon Head · DIN, GB, ANSI, BSW, JIS, DIN, GB, ANSI, B… **US$0.0144 – 0.12**MOQ 10,000 pieces [![Custom Slotted Screws M3 Knurled Stainless Steel Captive 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Screw](https://engineeringhardware.com/product/allen-hex-socket-head-cap-captive-screw/) Round Head · DIN, ANSI, GB, JIS **US$0.048 – 6.00**MOQ 100 pieces **US$0.036 – 0.12**MOQ 5,000 piecesGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Custom%20Flat%20Cap%20Screw%20Extended%20Silver%20Leg%20Bolt%20Round%20Head%20Captive%20Panel%20Screw%20Carriage%20Bolt%20Screws%20for%20Automotive%20Parts%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fcustom-flat-cap-screw-extended-silver-leg-bolt-round-head-captive-panel-screw%2F)