{"product_id":"top-shelf-m4x12-hex-spring-ball-plunger-screws-pre","title":"Top Shelf M4x12 Hex Spring Ball Plunger Screws Premium Stainless Steel Bead Fasteners 20 Piece Heavy Duty Kit For Rock Solid Pneumatic Tool Upgrades And Smooth Daily Shop Builds","description":"\u003cdiv\u003e\n\u003cp\u003ePremium SS M4x12 Spring Ball Plunger Screws\u003cbr\u003e\n✔️ M4 Thread, 12mm Length, Stainless Steel, 20 Piece Kit\u003c\/p\u003e \u003cp\u003eThese sealed ball bearing plunger fasteners provide reliable positioning and locking in pneumatic fixtures, medical devices, and precision assemblies. You get a full twenty pack of heavy duty screws designed to handle repeated impacts while keeping components aligned during routine shop projects or industrial tool upgrades. They feature smooth internal hex drives that accept standard Allen keys without stripping. Engineers typically mount them onto aluminum extrusions to stabilize cutting guides and routing templates.\u003c\/p\u003e ✅ Standard M4 x 12 mm thread pitch covers most international hardware setups\u003cbr\u003e\n✅ Rust resistant stainless steel body guards against workshop moisture and chemicals\u003cbr\u003e\n✅ Internal hex drive delivers steady torque without rounding off screw heads\u003cbr\u003e\n✅ Integrated coil spring pushes the hardened ball for solid grip retention\u003cbr\u003e\n✅ Flat silver finish blends neatly into metal machinery and custom brackets\u003cbr\u003e \u003cp\u003e 💡 Why select heavy duty spring loaded plunger pins for handy pneumatic tool mounting?\nEngineering teams favor these sealing washers because they lock workpieces in place without constant tweaking during high speed operations.\n- M4 metric threading aligns perfectly with standard tapped aluminum channel patterns\n- Compression coils maintain consistent pressure to prevent chatter on delicate CNC beds\n- Flat polished slots allow direct driver contact for quick installation and removal\u003c\/p\u003e✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":49240571937003,"sku":"VXB07T3QCLS8","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/61oSg-hCiUL.jpg?v=1786901965","url":"https:\/\/vxb.com\/products\/top-shelf-m4x12-hex-spring-ball-plunger-screws-pre","provider":"VXB Bearings","version":"1.0","type":"link"}