拧紧防止阀板转动的内六角螺栓，其作用是防止阀板转动拧断弹簧。
Tighten the inner hexagon bolt whose function is to prevent valve disc from rotating and breaking the springs.
一种力传动的轴心固定结构，包括齿轮或同步带轮、轴夹及内六角螺栓。
The utility model discloses a force driven fixing structure for axle center which comprises gear or synchronous belt wheel, axle clamp and inner hexagonal head bolt.
利用内六角螺栓拧紧的力量来使轴夹收缩进而使狭缝收缩，将轴心紧紧夹持住。
Using the hexagonal head bolt to fasten the axle clamp shrunk to narrow seam to hold the axle center firmly.
不锈钢螺丝系列：内六角螺栓，紧钉螺钉，机螺钉，自攻钉，马车螺丝，膨胀螺丝，吊环螺丝，牙条，开口销，平垫，弹垫等。
Stainless steel screw, hex bolt series: tighten screw, machine screw, nail screw, self-tapping screw, expansion bolts, carriage, lifting eyebolt, a tooth, flat mat, play split cotters cushion etc.
高强度螺栓、钢结构螺栓、外六角螺栓、内六角螺栓、地角螺栓、双头螺栓、U型螺栓和电力铁塔螺栓、油井上用的各种专用螺栓。
Different types of products include high strength bolts, hex bolts, hex socket head cap screws, foundation bolts, stud bolts, U bolts, bolts for electric power steel tower, bolts for oil well, etc.
高强度螺栓类：库存各种规格的10.9级、12.9级高强度内外六角螺丝、螺栓、套筒、喉塞、塞打、不锈钢内六角螺栓、刀把螺丝、机米。
High Strength bolts: all kinds of grade 10.9 and 12.9 high strength hex and hex socket screws, bolts, sleeves, pipe plugs, shoulder screws, stainless steel hex socket bolts, set screws.
听听圆柱头内六角螺栓内六角扳手大小有时提到wiMwi跟随由大小在工具或插口of，即wiM6wi ，固然这可能与切实的准则用途混杂；
Hexagon wrench size is sometimes referred to "M" followed by the size of the tool or socket that is "M6" even though this may be mistaken with the precise criteria for use;
听听圆柱头内六角螺栓内六角扳手大小有时提到wiMwi跟随由大小在工具或插口of，即wiM6wi ，固然这可能与切实的准则用途混杂；
Hexagon wrench size is sometimes referred to "M" followed by the size of the tool or socket that is "M6" even though this may be mistaken with the precise criteria for use;
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