沉头内六角螺丝；
旋松阀帽中间的内六角螺丝，并且提起阀帽，正好足够拿走旧阀膜。
Unscrew the Allen screw in the middle of valve cap and lift up the cap just enough to pick up the old diaphragm.
原有平头十字螺丝改为平头内六角螺丝。以增强安装或拆卸止水栓时的力度需求。
Flat-head inner hexagon screws instead the flat-heat cross-screw to increase the required installation and disassembly force.
本文还叙述了SSS钢在制成紧固环，钢笔帽，内六角螺丝，金属软管以及皮下注射针工艺中的应用。
Also, the processes by which SSS is made into circlip pen-caps, blind rivets, inner-hexagon screws, hosepipes and hypodermic needles are described.
球头内六角扳手磨损，带螺丝很容易，所以我尽量避免使用它们。
Ball-end hex wrenches wear out and strip screws easily, so I generally avoid them.
用随机附送的内六角扳手松开螺丝(3)，拿出外剥刀具。
Unscrew the screw (3) with Allen key, and take out the external skive tool.
包括低压头，半圆头及平头螺丝以及特殊内六角圆柱头螺钉如排空，钻孔头，自锁，等等。
Includes Low Head, Button Head, and Flat Head Screws, as well as special Socket Cap Screws such as Vented, Drilled Head, Self-Locking, and more.
试图删除这些固定螺钉用内六角扳手（也称为内六角扳手），这是错误的大小，甚至轻微磨损很可能会剥离驱动杯的固定螺丝的。
Trying to remove these setscrews with a hex wrench (aka Allen wrench) that is the wrong size or even slightly worn will very likely strip the drive cup of the setscrew.
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.
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.
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