--- title: "Closed Insert Nuts with Disk for Plastics Mouldings – Round Without Shoulder – Type Fdin 16903 (F) – 1974" description: "Closed Insert Nuts with Disk for Plastics Mouldings – Round Without Shoulder… — T-Nuts, Slot Nuts & Channel Spring Nuts. MOQ 100 pieces, US$0.11 – 0.60." url: https://engineeringhardware.com/product/closed-insert-nuts-with-disk-for-plastics-mouldings-round-without-shoulder-type-fdin/ source: Engineering Hardware & Fasteners --- # Closed Insert Nuts with Disk for Plastics Mouldings – Round Without Shoulder – Type Fdin 16903 (F) – 1974 [![Closed Insert Nuts with Disk for Plastics Mouldings – Round Without Shoulder – Type Fdin 16903 (F) – 1974](https://img.engineeringhardware.com/Closed-Insert-Nuts-with-Disk-for-Plastics-Mouldings-Round-Without-Shoulder-Type-Fdin-16903-F-1974.webp)](https://img.engineeringhardware.com/Closed-Insert-Nuts-with-Disk-for-Plastics-Mouldings-Round-Without-Shoulder-Type-Fdin-16903-F-1974.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Nuts › T-Nuts, Slot Nuts & Channel Spring Nuts](https://engineeringhardware.com/fastener-products/nuts/t-nuts-slot-nuts-channel-spring-nuts/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/closed-insert-nuts-with-disk-for-plastics-mouldings-round-without-shoulder-type-fdin.md) Model no. **M2 M3 M4 M5 M6 M8 M10** US$0.11 – 0.60 / piece MOQ 100 pieces · Final price confirmed in your quote - **Material:** Brass - **Head Style:** Hexagonal - **Standard:** DIN, ANSI, GB, JIS, GOST, BSW - **Grade:** 8.8 - **Surface:** Plain,Passivation - **Thread:** Full Thread and Half Thread - **Non-Standards:** OEM Is Available, According to Drawing or Samples Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Closed%20Insert%20Nuts%20with%20Disk%20for%20Plastics%20Mouldings%20%26%238211%3B%20Round%20Without%20Shoulder%20%26%238211%3B%20Type%20Fdin%2016903%20%28F%29%20%26%238211%3B%201974%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fclosed-insert-nuts-with-disk-for-plastics-mouldings-round-without-shoulder-type-fdin%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 | Model NO. | M2 M3 M4 M5 M6 M8 M10 | | --- | --- | | Material | Brass | | Type | Round Head | | Connection | Common Bolt | | Head Style | Hexagonal | | Standard | DIN, ANSI, GB, JIS, GOST, BSW | | Grade | 8.8 | | Surface | Plain,Passivation | | Application | Machinery, Chemical Industry, Environmental, Build | | Certification | ISO, RoHS, SGS, TUV | | Thread | Full Thread and Half Thread | | Non-Standards | OEM Is Available, According to Drawing or Samples | | Delivery Time | 7-30days | | Transport Package | Carton Packaging | | Specification | M2 M3 M4 M5 M6 M8 M10 | | Origin | Wuxi China | | Category | [T-Nuts, Slot Nuts & Channel Spring Nuts](https://engineeringhardware.com/fastener-products/nuts/t-nuts-slot-nuts-channel-spring-nuts/) | ## Description Closed Insert Nuts with Disk for Plastics Mouldings – Round Without Shoulder – Type Fdin 16903 (F) – 1974 is part of our t-nuts, slot nuts & channel spring nuts range (Nuts). ### Key details - **Type:** Round Head - **Standard:** DIN, ANSI, GB, JIS, GOST, BSW - **Material:** Brass - **Grade:** 8.8 - **Thread:** Full Thread and Half Thread - **Head Style:** Hexagonal - **Connection:** Common Bolt - **Application:** Machinery, Chemical Industry, Environmental, Build Available configurations include material, head style, standard, grade and surface. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 100 pieces at US$0.11 – 0.60 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 Closed Insert Nuts with Disk for Plastics Mouldings – Round Without Shoulder – Type Fdin 16903 (F) – 1974? The listed minimum order is 100 pieces, at US$0.11 – 0.60 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 Closed Insert Nuts with Disk for Plastics Mouldings – Round Without Shoulder – Type Fdin 16903 (F) – 1974? Type: Round Head; Standard: DIN, ANSI, GB, JIS, GOST, BSW; Material: Brass; Grade: 8.8; Thread: Full Thread and Half Thread; Head Style: Hexagonal. 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 surface. 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 t-nuts, slot nuts & channel spring nuts are available? The T-Nuts, Slot Nuts & Channel Spring Nuts category lists 1,888 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/nuts/t-nuts-slot-nuts-channel-spring-nuts/](https://engineeringhardware.com/fastener-products/nuts/t-nuts-slot-nuts-channel-spring-nuts/) 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 & 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custom quote →](https://engineeringhardware.com/contact/) ## Request a quote for this product ## Related products [All T-Nuts, Slot Nuts & Channel Spring Nuts →](https://engineeringhardware.com/fastener-products/nuts/t-nuts-slot-nuts-channel-spring-nuts/) [![China#5449 Steel M8 (10S-45) Roll-in T Nuts with Ball Spring Aluminum Profile](https://img.engineeringhardware.com/China-5449-Steel-M8-10S-45-Roll-in-T-Nuts-with-Ball-Spring-Aluminum-Profile.webp)](https://engineeringhardware.com/product/china-5449-steel-m8-10s-45-roll-in-t-nuts-with-ball-spring-aluminum-profile/) T-Nuts, Slot Nuts & Channel Spring Nuts ### [China#5449 Steel M8 (10S-45) Roll-in T Nuts with Ball Spring Aluminum Profile](https://engineeringhardware.com/product/china-5449-steel-m8-10s-45-roll-in-t-nuts-with-ball-spring-aluminum-profile/) T Head · ISO **US$0.27 – 0.32**MOQ 1 piece [![Spring Ball Sliding T Slot Nut for Aluminum Profile Slide 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