Ruytx 8pcs Coach Screws M10×100mm Heavy Duty Hex Head Wood Lag Bolts

• 【Packing Contents】The package contains 8 pieces of M10×100mm galvanized carbon steel coach screws, with thread diameters covering two major specifications, M8 and M10, and lengths available in various options from 30mm to 260mm. Some models of the hex screws are available in partial-thread styles, meeting multiple usage needs such as wood connections and heavy-duty coach bolt fastening.
• 【High-Quality Material】M8/M10 concrete screws are forged from high-hardness, high-quality carbon steel and strictly follow the DIN571 production standard. The entire surface of the coach screws is galvanized for anti-corrosion treatment, effectively sealing out moisture and resisting rust, ensuring long-lasting protection even in outdoor open-air environments. The steel base material of the sleeper screws offers high strength, stable load-bearing capacity, and strong tensile resistance without easy fracturing. The precision roll-formed threads are deep, uniform, and provide strong biting grip.
• 【Hex Head Thickened Design】M8/M10 timber screws feature a thickened external hex head, with the side of the head reinforced and thickened to provide a larger stress-bearing area. The coach screws effectively prevent head breakage and thread stripping during fastening, balancing both strength and construction convenience. The surface of the decking screws is smooth and flat, offering wear resistance and durability, which extends their service life.
• 【Easy Installation】The M10×100mm galvanized carbon steel hex coach screws feature a self-tapping wood thread design, with threads arranged in uniform depth and spacing for tight engagement with wood materials. On standard solid wood substrates, they can be driven directly without pre-drilling. The sleeper screws is less prone to slipping during tightening, combining the rapid locking capability of screws with the heavy-duty fastening tension of coach bolts, making installation time-saving and labor-efficient.
• 【Wide Application】M8/M10 timber screws are suitable for indoor and outdoor woodworking, household, and industrial applications. Indoors, they can be used for furniture assembly such as tables, chairs, cabinets, bed frames, and shelving units. Outdoors, the coach screws can be used for fastening coach bolts in fences, patios, gates, roofing, landscape construction, as well as industrial fixing for heavy-duty brackets, satellite antenna poles, and more. They support various material connections, including wood-to-wood, metal-to-wood, and masonry/concrete-to-wood.

Product Description 1.This coach screw is forged from high-hardness, high-quality carbon steel and strictly follows the DIN571 production standard. It offers high strength, stable load-bearing capacity, and strong tensile resistance without easy fracturing. The entire surface is galvanized for anti-corrosion treatment, effectively sealing out moisture and resisting rust, ensuring long-lasting protection even in outdoor open-air environments. 2.The hex screw features a thickened standard hex head structure, with the side of the head reinforced and thickened to ensure uniform and stable force application, preventing head breakage and thread stripping. It provides reliable pressure resistance in heavy-duty coach bolt fastening scenarios and is suitable for various wood structure installation and fixing applications. 3.The concrete screw adopts a self-tapping wood thread design, with deep, uniform threads that provide strong biting grip. It can be quickly driven into various solid wood panels without pre-drilling, is less prone to slipping during tightening, and makes installation time-saving and labor-efficient. 4.The product's thread diameters cover two major specifications, M8 and M10, with lengths available in various options from 30mm to 260mm. Some models are available in partial-thread styles. Product Specifications Material: Carbon steel Surface Treatment: Galvanized Size: M10 × 100 mm Installation and Usage Tips 1.During installation, it is recommended to keep the sleeper screw vertically aligned when driving it in, ensuring full thread engagement to avoid thread stripping or damage caused by uneven force distribution. 2.After long-term use, it is recommended to periodically check the tightening status of the timber screw and re-tighten as needed. 3.Due to manual measurement, slight dimensional deviations may exist.