قائمة أنواع المفكات
مفكات القلاووظ، هي أداوات تستخدم لثبيت أو حل المسامير القلاووظ.[1]
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الأنواع الشائعة
أنواع خارجية
Square
Hex
Pentagon
A pentagon screw drive uses five-sided fastener heads. The fastener is known as a penta screw. They require a special five-point socket in order to be turned. Water meter covers, natural gas valves, and electrical cabinets are commonly secured with penta fasteners. It is also common in the U.S. for fire hydrants to have valves with a pentagon drive.
Thumbscrew
A thumbscrew is a type of screw drive with either a tall head and ridged or knurled sides, or a flat, vertical head. They are intended to be tightened and loosened by hand. They are often cut for Phillips head or slotted screwdrivers as well.
Slotted types
Slot head
Blade width | Fastener size |
---|---|
3⁄32 in (2.4 mm) | 0–1 |
1⁄8 in (3.2 mm) | 2 |
5⁄32 in (4.0 mm) | 3 |
3⁄16 in (4.8 mm) | 4–5 |
1⁄4 in (6.4 mm) | 6–7 |
5⁄16 in (7.9 mm) | 8–10 |
3⁄8 in (9.5 mm) | 12–14 |
7⁄16 in (11 mm) | 16–18 |
1⁄2 in (13 mm) | 18–24 |
Cross
Cruciform types
فيليپس
Tool size | Fastener size |
---|---|
0 | 0–1 |
1 | 2–4 |
2 | 5–9 |
3 | 10–16 |
4 | 18–24 |
Frearson
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French recess
![]() | This section requires expansion. (June 2010) |
JIS B 1012
Mortorq
Pozidriv
Supadriv
Robertson
Colour | Screw types | Fraction | Range |
---|---|---|---|
Orange (#00) | No. 1 & 2 | 1/16 in.+ | 1.77–1.80 mm (0.070–0.071 in) |
Yellow (#0) | No. 3 & 4 | 3/32 in.- | 2.29–2.31 mm (0.090–0.091 in) |
Green (#1) | No. 5, 6 & 7 | 7/64 in.+ | 2.82–2.86 mm (0.111–0.113 in) |
Red (#2) | No. 8, 9 & 10 | 1/8 in.+ | 3.34–3.38 mm (0.131–0.133 in) |
Black (#3) | No. 12 and larger | 3/16 in.+ | 4.81–4.85 mm (0.189–0.191 in) |
Hex socket
Hexalobular socket
TTAP
Combination drives
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Phillips/square
Breakaway head
Bristol
Clutch
Double hex
Line
One-way
Pentalobular
Polydrive
Proprietary head
Spanner
Spline
Torq-set
TP3
Tri-wing
Triple square
Protruding obstacle
تصنيفات بديلة
- External
- Hex
- Line (ALH)
- Square
- Socket heads
- Bristol
- Clutch
- Double hex
- Hex socket
- Hexalobular socket
- Line (ALR)
- Polydrive
- Robertson
- Spline
- TP3
- Triple square
هوامش
المصادر
- ^ screw drive systems
- ^ أ ب خطأ استشهاد: وسم
<ref>
غير صحيح؛ لا نص تم توفيره للمراجع المسماةcapotosto
- ^ "McFeely's Square Drive Screws".
- ^ "American Fastener".