{"product_id":"m4-male-thread-rod-end-bearing-sa4tk-rose-joint-right-left-hand","title":"M4 Male Thread Rod End Bearing Rose Joint Bearings Right\/Left Hand 4mm SA4TK T\/K","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eM4 Male Thread Rod End Bearing — Precise Linkage Control for Robotics, CNC \u0026amp; Mechanical Assemblies\u003c\/h2\u003e\n\u003cp\u003eWhen a loose or misaligned joint causes vibration, binding, or premature wear in your build, the root cause is often a substandard rod end. Engineers, robotics builders, and CNC fabricators who need reliable angular articulation in tight spaces rely on M4 male thread rod end bearings to deliver consistent, low-friction pivot performance across demanding duty cycles.\u003c\/p\u003e\n\u003cp\u003eThese M4 rod end bearings feature a steel outer body with an M4 male threaded shank (4 mm nominal bore), available in right-hand (SA4TK) and left-hand (SAL4T\/K) thread configurations. The spherical inner race allows angular misalignment compensation of typically ±10–15°, accommodating shaft deflection without binding. Overall body length is typically 30–40 mm; thread engagement length is typically 10–15 mm.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include push-pull control linkages on RC aircraft and drones, steering tie-rod assemblies on small vehicles and go-karts, and linear actuator end connections on CNC router Z-axis carriages — all applications where a compact M4 rose joint bearing must handle both radial load and angular misalignment simultaneously.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔩\u003c\/span\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits M4 threaded rods, clevis pins, and linkage assemblies. Right-hand (SA4TK) threads onto standard right-hand M4 rod ends; left-hand (SAL4T\/K) pairs with left-hand adjuster tubes for turnbuckle-style length adjustment. Verify thread direction before ordering.\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These M4 Rod End Bearings\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e\n\u003cstrong\u003eDual Thread Direction\u003c\/strong\u003e\n\u003cp\u003eAvailable in right-hand (SA4TK) and left-hand (SAL4T\/K) variants, enabling turnbuckle-style length adjustment when paired together on a single linkage rod.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎯\u003c\/span\u003e\n\u003cstrong\u003eSpherical Misalignment Compensation\u003c\/strong\u003e\n\u003cp\u003eThe spherical inner race accommodates angular misalignment of typically ±10–15°, preventing binding and reducing stress on connected shafts and frames.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\n\u003cstrong\u003eM4 Male Threaded Shank\u003c\/strong\u003e\n\u003cp\u003e4 mm nominal thread diameter with standard M4 pitch for direct installation into threaded rods, clevis brackets, and adjuster tubes — no special tooling required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\n\u003cstrong\u003eSteel Construction with Corrosion Resistance\u003c\/strong\u003e\n\u003cp\u003eSteel body and race provide structural rigidity for radial and axial loads; surface treatment helps resist oxidation in typical indoor and light outdoor environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\n\u003cstrong\u003eFlexible Pack Quantities\u003c\/strong\u003e\n\u003cp\u003eOrder in packs of 1, 5, 10, 15, or 20 pieces to match your project scale — from single prototype builds to small-batch production runs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n\u003cstrong\u003eCompact Form Factor\u003c\/strong\u003e\n\u003cp\u003eDesigned for space-constrained linkage points where a full-size rod end would interfere with adjacent components, making these ideal for robotics joints and CNC carriage mounts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — M4 Rod End Bearings\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Size\u003c\/th\u003e\n\u003ctd\u003eM4 (4 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Type\u003c\/th\u003e\n\u003ctd\u003eMale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Direction\u003c\/th\u003e\n\u003ctd\u003eRight-hand (SA4TK) \/ Left-hand (SAL4T\/K)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Diameter\u003c\/th\u003e\n\u003ctd\u003e4 mm (0.157 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody Material\u003c\/th\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAngular Misalignment\u003c\/th\u003e\n\u003ctd\u003eTypically ±10–15°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall Body Length\u003c\/th\u003e\n\u003ctd\u003eTypically 30–40 mm (1.18–1.57 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Engagement Length\u003c\/th\u003e\n\u003ctd\u003eTypically 10–15 mm (0.39–0.59 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLoad Rating\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Quantities\u003c\/th\u003e\n\u003ctd\u003e1 \/ 5 \/ 10 \/ 15 \/ 20 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose between right-hand (SA4TK) and left-hand (SAL4T\/K)?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eIf your linkage rod has a standard right-hand thread on both ends, select SA4TK for both rod ends. If you need turnbuckle-style length adjustment — where rotating the central tube lengthens or shortens the assembly — pair one SA4TK (right-hand) with one SAL4T\/K (left-hand) on opposite ends of the same rod.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the maximum angular misalignment these bearings can handle?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe spherical inner race typically accommodates ±10–15° of angular misalignment. Operating consistently at the upper limit of this range will accelerate wear; for high-cycle or high-load applications, keep misalignment below 10° where possible.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these rod end bearings suitable for outdoor or wet environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe steel construction with surface treatment provides resistance to light moisture and humidity typical of indoor workshops and sheltered outdoor use. For prolonged exposure to rain, salt spray, or immersion, consider applying a compatible grease or selecting stainless-steel rod ends for your application.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat radial and axial loads can M4 rod end bearings handle?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eAt M4 size, these bearings are suited for light-duty linkage loads typical of robotics joints, RC control surfaces, and small CNC carriages. Specific dynamic and static load ratings depend on the exact variant; contact us to confirm load capacity for your application before ordering.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these compatible with standard M4 threaded rods and clevis pins?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. The M4 male shank threads directly onto standard M4 female-threaded rods, adjuster tubes, and clevis brackets with standard M4 pitch. Always verify the thread pitch and direction (right or left hand) of your mating component before installation.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow many pieces should I order for a typical project?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eA single push-pull linkage requires two rod ends (one per end). For a full 3-axis CNC router with multiple carriages, packs of 10 or 20 are more economical. The 5-pack is popular for small robot arm builds with 2–3 articulated joints. Select the quantity that matches your build count above.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these in a turnbuckle assembly?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. Pair one SA4TK (right-hand thread) and one SAL4T\/K (left-hand thread) on opposite ends of a central threaded tube. Rotating the tube will simultaneously thread both rod ends in or out, adjusting the overall linkage length without disassembly — a standard turnbuckle configuration used in aircraft control systems and suspension linkages.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-cta\"\u003e\n🛒 Select your size option and quantity above, then add to cart.\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose between right-hand (SA4TK) and left-hand (SAL4T\/K)?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your linkage rod has a standard right-hand thread on both ends, select SA4TK for both rod ends. If you need turnbuckle-style length adjustment, pair one SA4TK (right-hand) with one SAL4T\/K (left-hand) on opposite ends of the same rod.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the maximum angular misalignment these bearings can handle?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The spherical inner race typically accommodates ±10–15° of angular misalignment. For high-cycle or high-load applications, keep misalignment below 10° where possible.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these rod end bearings suitable for outdoor or wet environments?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The steel construction with surface treatment provides resistance to light moisture and humidity. For prolonged exposure to rain, salt spray, or immersion, apply a compatible grease or select stainless-steel rod ends.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What radial and axial loads can M4 rod end bearings handle?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"At M4 size, these bearings are suited for light-duty linkage loads typical of robotics joints, RC control surfaces, and small CNC carriages. Contact us to confirm load capacity for your specific application.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these compatible with standard M4 threaded rods and clevis pins?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The M4 male shank threads directly onto standard M4 female-threaded rods, adjuster tubes, and clevis brackets. Always verify thread pitch and direction before installation.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many pieces should I order for a typical project?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A single push-pull linkage requires two rod ends. For a full 3-axis CNC router, packs of 10 or 20 are more economical. The 5-pack is popular for small robot arm builds with 2–3 articulated joints.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use these in a turnbuckle assembly?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Pair one SA4TK (right-hand thread) and one SAL4T\/K (left-hand thread) on opposite ends of a central threaded tube. Rotating the tube adjusts the overall linkage length without disassembly.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"SA4TK-M4-right hand \/ 1","offer_id":52448905363730,"sku":"GLFBCQFGLBZSJ074873x1","price":10.04,"currency_code":"USD","in_stock":true},{"title":"SAL4T\/K-M4-left hand \/ 1","offer_id":52448905396498,"sku":"GLFBCQFGLBZSJ074874x1","price":10.04,"currency_code":"USD","in_stock":true},{"title":"SA4TK-M4-right hand \/ 5","offer_id":52448905429266,"sku":"GLFBCQFGLBZSJ074873x5","price":23.36,"currency_code":"USD","in_stock":true},{"title":"SAL4T\/K-M4-left hand \/ 5","offer_id":52448905462034,"sku":"GLFBCQFGLBZSJ074874x5","price":23.36,"currency_code":"USD","in_stock":true},{"title":"SA4TK-M4-right hand \/ 10","offer_id":52448905494802,"sku":"GLFBCQFGLBZSJ074873x10","price":44.74,"currency_code":"USD","in_stock":true},{"title":"SAL4T\/K-M4-left hand \/ 10","offer_id":52448905527570,"sku":"GLFBCQFGLBZSJ074874x10","price":44.74,"currency_code":"USD","in_stock":true},{"title":"SA4TK-M4-right hand \/ 15","offer_id":52448905560338,"sku":"GLFBCQFGLBZSJ074873x15","price":66.07,"currency_code":"USD","in_stock":true},{"title":"SAL4T\/K-M4-left hand \/ 15","offer_id":52448905593106,"sku":"GLFBCQFGLBZSJ074874x15","price":66.07,"currency_code":"USD","in_stock":true},{"title":"SA4TK-M4-right hand \/ 20","offer_id":52448905625874,"sku":"GLFBCQFGLBZSJ074873x20","price":87.45,"currency_code":"USD","in_stock":true},{"title":"SAL4T\/K-M4-left hand \/ 20","offer_id":52448905658642,"sku":"GLFBCQFGLBZSJ074874x20","price":87.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-01_977bbe52-e28e-415a-a31f-c3fd7fdd0723.jpg?v=1783687156","url":"https:\/\/homediyer.com\/products\/m4-male-thread-rod-end-bearing-sa4tk-rose-joint-right-left-hand","provider":"HomeDIYer","version":"1.0","type":"link"}