Stainless Steel Hexagon Socket Oil Plug With Washer

Product introduction

External hexagonal oil plug, also known as oil drain plug or screw plug, is a special fastener used in mechanical equipment to seal oil holes in lubrication systems such as oil tanks, oil cylinders, and gear boxes. Its core function is to provide reliable sealing and convenient opening and closing operations when the equipment needs to replace or drain lubricating oil. The product structure design is refined and practical. One end is a solid cone or flat cylinder, equipped with sealing threads to ensure a tight fit with the threaded holes in the box to achieve effective sealing. The other end has a standard external hex head, which is its key feature. The hexagonal head design facilitates the use of a universal wrench for tightening and disassembly, provides sufficient torque, is simple and labor-saving to operate, and can operate stably even in restricted space or oily environments. In order to ensure sealing performance, products are usually processed with fine threads on the threaded parts or used with sealing washers, O-rings, and anaerobic adhesives, which can effectively prevent lubricating oil leakage and the intrusion of external pollutants. External hexagonal oil plugs are widely used in automobile engines, gearboxes, engineering machinery, hydraulic systems and various industrial equipment. It is mostly made of high-quality materials such as 45# steel and stainless steel. It has good mechanical strength and oil resistance and is an important component to ensure the cleanliness of the lubrication system and the normal operation of the equipment.

 

Product features

1. Reliable sealing

The product is tightly integrated with the box hole wall through precision-machined threads, and is often supplemented by a variety of sealing solutions, such as copper washers, rubber O-rings, or sealants on the threaded parts to form a tight seal, effectively preventing lubricating oil leakage and the intrusion of contaminants such as dust and moisture.

 

2. Convenient operability

Its external hexagonal head is the core design advantage. This structure allows the use of standard wrenches (such as open-end wrenches, torx wrenches) for operation, providing great tightening and disassembly torques, simple and labor-saving operation, and easy maintenance even in oily environments or small spaces.

 

3. Sturdy and durable

Usually made of high-quality steel, stainless steel or brass, after heat treatment and surface treatment (such as galvanizing, blackening), it has excellent mechanical strength, corrosion resistance and oil resistance, can withstand the oil pressure inside the box and complex working conditions, and has a long service life.

 

4. Simple structure, economical and practical

The structure design is simple and can be installed and replaced without complicated tools. The manufacturing cost is low. However, it plays an irreplaceable role in ensuring the normal operation of the lubrication system and extending the life of the equipment. It is extremely practical and economical.

 

Product application

1. Lubrication systems of various mechanical equipment: oil drain and oil filling ports: most commonly found at the bottom of gearboxes, engine oil pans, gear boxes, and hydraulic oil tanks, used as oil drain plugs for regular replacement and discharge of used lubricating oil. At the same time, it is also located on the side or above the box as an oil filling hole plug. Oil level inspection hole: used to seal the mounting hole of the oil level gauge or dipstick to facilitate checking the oil level in the box.

 

2. Automobile and transportation fields: It is widely used in the lubrication system of core components such as engines, gearboxes, differentials, and power steering pumps of cars, trucks, and engineering vehicles.

 

3. Industrial manufacturing and heavy industry: It can be found in almost all industrial equipment involving lubricating oil or hydraulic oil, such as gear reducers, air compressors, hydraulic systems, machine tool spindle boxes, and circulating cooling systems.

 

4. Other specific applications: It is also commonly used to block drainage and vent holes in some closed containers, or as a blocker for process holes to prevent medium leakage and contaminants from entering.

 

FAQ

Q: What is the main function of the external hexagonal oil plug?

A: Its core function is sealing. It is used to seal the oil filling holes, oil drain holes and inspection holes on mechanical equipment (such as gearboxes, engine oil pans, hydraulic oil tanks) to prevent lubricating oil or hydraulic oil from leaking, and to block the entry of external dust, moisture and other pollutants to ensure the cleanliness and normal operation of the lubrication system.

 

Q: What should I pay attention to when installing the oil plug?

A: Cleaning: Before installation, be sure to clean the threaded holes of the box and the threads of the oil plug to ensure that there are no impurities. Sealing treatment: If a flat seat seal is used, a new gasket must be installed. If the thread sealing ability is insufficient, an appropriate amount of anaerobic thread sealant can be applied. Tightening torque: Use a wrench to hold the external hex head and tighten evenly. Be careful not to use excessive force, otherwise the threads may be damaged or the box may burst, causing serious leakage. It is recommended to refer to the equipment manual for recommended torque.

 

Q: How to choose a suitable external hexagonal oil plug?

A: The following key parameters need to be confirmed: Thread specification: must completely match the threaded hole on the equipment box (such as metric fine thread M12x1.5, or inch thread such as 1/2"-20UNF). Sealing method: based on design selection, common ones are: tapered thread seal: rely on The thread engages and seals itself. Flat seat + gasket: relies on pressed copper gasket or rubber gasket for sealing. O-ring seal: There is a groove on the oil plug to install the O-ring. Material and surface treatment: Commonly used are carbon steel (surface galvanized, black), stainless steel, selected according to the corrosiveness and strength requirements of the medium.

Corrosion Resistant Ultra Titanium Lightweight Nuts

Heat Resistant Self-Locking Nylon-Insert Flange Nut

Alloy Steel Non-Standard Thread Nuts

Vibration Resistant Alloy Steel All-Metal Lock Nuts Fasteners

Carbon Steel Butterfly Nut

304 Full Thread Stainless Steel Square Nut