1 The geometrical parameters of a screw bolt are important factors that affect the fatigue strength of the bolted joints.

2 The reformed lathe can machine the varying pitch screw bolt according to the require of quality and technology.

3 When the screw bolt is rotated, the washer is forward pushed out, and thereby, the steel wire ring is tightly connected to realize the purpose of tightening ring.

4 The expeller consists of a screw bolt, a steel cylinder and transmission components.

5 Screw bolt extractor . special non - standard circular screwing dies and milling cutters can be made.

6 A pressure regulation screw bolt can be arranged on the pressure spring, and the pedals can also be installed on the lateral part of the casing.

7 Hardware, Screw Bolt, Nut, Spring, Rivet, Washer, Furniture Accessories Springwashers.

8 Die structure was discussed through the analysis of forming process of high intension screw bolt and a set of hot upsetting tool was designed.

9 A rubber gasket seal is used between a clamp nut of a barrel screw bolt and the outer wall of the barrel body of the utility model.

10 In line with diligently, enterprising consummates unceasingly reaches the strength to be willing to make a never rusty screw bolt!

11 By checking its reliability during unlimited service time, it is discovered that the screw bolt size of present design is bigger, and the pre- stressing force is higher as well.

12 The utility model provides a screw and a screw driver matching with it. The screw comprises a slotted screw head and a screwed screw bolt,[] and a positioning hole is arranged at the center of the slot.

13 Installing bolts allowed to use gas cutting bore hole and never more than two gaskets pad not sexual bolts exposed screw bolt length of not less than 2-3 deduction.

14 Connecting bolts are arranged in the plugging conical points, and an anti-rotation key and an outer six-square sleeve which can realize the linkage are arranged on the screw bolt.

15 Flees the warm neon, the cold cold, flees the modern time screw bolt the destiny.

16 This standard is applicable to hot rolled round carbon steel bars for manufacturing screw nail, screw nut, screw bolt and rivet of cold upset forging or hot upset forging.

17 The utility model relates to an improved straight handle type artificial hip joint fixed by the screw bolt of a femur big rotor.

18 The utility model can increase the swing assisting angle and the swing assisting strength through adjusting the central adjusting screw bolt to meet the requirements of different patients.

19 Lift mechanisms are arranged on the front running device and the rear running device which can be separated and can be inserted and fixed to form integration by a screw bolt and a screw nut.

20 The feasibility of replacing expansion bolt by chemical glue screw bolt on glass curtain wall was discussed.