冷镦加工是一种少切削或无切削的压力加工新工艺
金屬。它是一種利用金屬在下列因素作用下產生塑性變形的加工方法
外力作用下,在模具的幫助下,重新分配和轉移金屬的體積,以形成
所需的零件或坯料。冷镦工艺最适合生产标准的
螺栓、螺絲、螺帽、鉚釘和銷等緊固件
Flange Hexagonal Groove Oil Plug – Overview
A flange hexagonal groove oil plug is a specialized sealing fastener designed for fluid retention in engines, gearboxes, hydraulic systems, and industrial machinery. It combines a hex head for tool engagement, a flange base for secure sealing, and often a groove for an integrated O-ring or gasket.Flange Hexagonal Slot Oil Plug Screw
Key Features & Design Elements
1. Head Design
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Hexagonal (6-sided) head – Allows tightening/loosening with a standard wrench, socket, or Allen key (depending on design).
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Flange base – A widened, flat collar that distributes clamping force, prevents over-tightening, and improves sealing.
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Groove for O-ring/gasket – A machined recess near the threads houses a rubber or silicone O-ring for a leak-proof seal.
2. Thread Type
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Straight threads (BSPP, UNF, Metric) – Often used with sealing washers or O-rings.
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Tapered threads (NPT, BSPT) – Self-sealing when torqued properly.
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Common sizes: M12x1.5, M14x1.5, 1/2″ NPT, 3/4″ BSPP (varies by application).
3. Sealing Mechanism
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Integrated O-ring (most common) – Provides a reusable, pressure-resistant seal.
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Copper/aluminum crush washer – Used in high-torque applications (single-use).
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Metal-to-metal sealing (in flanged designs without a groove).
Comparison to Other Oil Plugs
Feature | Flange Hex Groove Plug | Square Head Plug | Standard Hex Plug |
---|---|---|---|
Head Type | Hex + flange | Square | Hex (no flange) |
Sealing | O-ring/groove + flange | Washer/tapered threads | Washer only |
Tool Needed | Hex wrench/socket | Square wrench | Hex wrench/socket |
重複使用性 | High (O-ring replaceable) | Moderate | Moderate |
Best For | High-pressure systems | General drainage | Standard applications |
Flange Hexagonal Slot Oil Plug Screw
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