Hollow Hexagon Male Oil Plug Adapter

The hexagonal head design of Xiaoguo®'s inventory product "Hollow Hexagon Male Oil Plug Adapter" is suitable for high-torque transmission. Using a standard wrench or socket for operation ensures a secure fastening without any loosening.

Model:DIN910

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Product Description

The Hollow Hexagon Male Oil Plug Adapter is a hydraulic/pneumatic pipe connection component that is externally hexagonal in shape, features an axial through-hole structure, and employs an external thread interface. Essentially, it is a "hexagonal threaded plug with a central hole", which can seal the ports like a regular plug, and also enables additional functions such as pressure testing, exhaust, sampling, or temporary instrument connection through its hollow structure.

Compared with ordinary solid plugs, the main difference lies in the following: Solid plugs can only simply seal, while the hollow hexagonal adapter is a "multi-functional channel" that can perform various diagnostic and maintenance operations without disassembling the system.

Model NO.	DIN910	Groove	Hexagon
Connection	Common Bolt	Head Style	Hexagonal
Standard	DIN, GB, ANSI, BSW, JIS, GOST	Grade	8.8
Pitch (P)	1.1 - 1.8 mm	Diameter	M3-M24
Length	6-50 mm	Surface	Primary Color

Standard Specifications

The Hollow Hexagon Male Oil Plug Adapter mainly complies with the standards of DIN (German Industrial Standards), ISO (International Organization for Standardization), and GB (Chinese National Standards), etc.

（1）DIN Standards: One of the most universal standards. The specifications are clear. DIN 910 is a specific standard for hexagonal slotted screws with shoulders, featuring cylindrical (parallel) threads and stop steps, achieving sealing through replaceable washers. Other related standards include DIN 908 (hexagonal internal screws), DIN 906 (hexagonal conical thread screws), and DIN 909 (hexagonal conical thread external screws).

（2）ISO & GB Standards: Internationalization and Localization Applications. ISO 9974-4 is an international standard that fully defines the dimensions, designs, and testing methods for external and internal hexagonal nuts used in general fluid transmission and general equipment. GB/T 2878.4-2011 and GB/T 43077.4-2023 respectively adopt ISO 6149-4 and ISO 9974-4 standards in an equivalent manner. Hexagonal nuts that comply with these national standards can have a maximum working pressure of up to 63 MPa (approximately 630 bar).

Standard Thread Type Key Feature Sealing Method

DIN 906 Tapered (R) Hex socket drive, no collar Metal-to-metal (tapered thread)

DIN 908 Parallel (G/M) Hex socket drive, with collar Replaceable sealing ring (copper, ED, O-ring)

DIN 910 Parallel (G/M) Hex head, with collar Replaceable sealing ring

PARTNO	THREAD	ED CAPTIVE	DIMENSIONS
PARTNO	E	ED CAPTIVE	A	L	S	D	N.M
TMN08	M8x1	ED-08	8	12	4	12	8-10
TMN10	M10x1	ED-10	8	12	5	14	10-12
TMN12	M12x1.5	ED-12	12	17	6	17	15-25
TMN14	M14x1.5	ED-14	12	17	6	19	20-35
TMN16	M16x1.5	ED-16	12	17	8	22	25-40
TMN18	M18x1.5	ED-18	12	17	8	24	30-45
TMN20	M20x1.5	ED-20	14	19	10	26	35-50
TMN22	M22x1.5	ED-22	14	19	10	27	40-70
TMN24	M24x1.5	ED-24	14	19	10	29	40-70
TMN26	M26x1.5	ED-26	16	21	12	32	60-100
TMN27	M27×2	ED-27	16	21	12	32	100-135
TMN33	M33x2	ED-33	16	22	17	40	150-240
TMN42	M42x2	ED-42	16	22	22	50	250-360
TMN48	M48x2	ED-48	16	22	24	55	300-400
TMN60	M60x2	ED-60	18	26	27	70	380-450

FAQ

（1）What standards do your products meet?

Our Hollow Hexagon Male Oil Plug Adapter is manufactured in accordance with the DIN 910 standard (parallel threads with a bushing, replaceable sealing ring) and the DIN 909 standard (conical threads, metal-to-metal sealing).

（2）What materials can be used for the Hollow Hexagon Male Oil Plug Adapter?

Standard materials include carbon steel (grades 4.8, 6.8, 8.8, 10.9, 12.9), stainless steel (A2‑70, A4‑80, 304, 316), brass, and aluminum. We also supply alloy steel for high‑strength applications.

（3）Do you provide samples? What is the lead time for samples?

Yes, free samples are available for standard sizes. Stocked samples ship within 3–5 days by express (DHL/FedEx). Custom samples require 15–20 days for production.