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HeadStyle 頭型資訊
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平頭 FLAT
半圓頭 OVAL
崗山頭 BINDING
盤頭 (雙R) PAN (JIS)
盤頭 (單R) PAN (ANSI)
圓頭 ROUND
大扁頭 TRUSS
鈕扣頭 BUTTON
平頂頭 PF.
盤頭帶介 PAN WASHER
圓錐頭 CHEESE
圓柱頭 FILLISTER
HeadStyle 頭型資訊
- Binding – undercut unless otherwise specified -not recommended for phillips recess
- Fillister – deep slot used for counter bored holes
- Flat Fillister – same as standard fillister without oval top
- Flat 82 degree – used where flush surface is desired
- Flat 100 degree – larger head than 82 degree used for thin metal soft plastic
- Flat Trim – same as 82 degree except diameter and countersink depth reduced
- Flat Undercut – standard 82 degree with lower 1/3 countersink removed for short screws
- Hexagon – manufactured as trim hex or indented hex
- Hex Washer – same as hexagon with washer section
- Oval – same as flat head with rounded surface for appearance
- Oval Undercut – similar to flat undercut with rounded surface
- Oval Trim – same as oval – smaller diameter and countersink
- Pan – recommended to replace round, truss binder
- Round – general purpose (see pan head)
- Round Countersunk – bolts only – similar to flat head with no driving recess
- Round Washer – same as round head with integral washer for bearing surface.
- Square Bolts – large bearing surface for wrench tightening
- Square Countersunk – for use on plow bolts
- Square w/Set Screw – recommended for high torque assembly
- Truss – similar to round head with larger diameter (see pan head)
