A crisp studio shot of a steel DIN 908 internal hexagon socket screw plug showcasing its precision groove and embedded green/black ED soft sealing NBR ring.

A real-world application photo showing multiple DIN 908 M10x1 soft sealing screw plugs blocking unused outlet ports flush on an automated grease progressive distributor.

DIN 908 Hexagon Socket Screw Plug with ED Soft Sealing Ring for Progressive Distributors

Tube End Connection Types:
24 degree cone connector
Port End Connection Types:
Metric O-ring port
Shapes of Hydraulic Fittings:
Straight
Hose End Connection Type:
One wire braid hoses

Availability:



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Product Description

DIN 908 Hexagon Socket Screw Plug with ED Soft Sealing NBR Ring for Progressive Distributors

Product Overview

Block off unused ports on your lubrication blocks with zero leaks using our premium DIN 908 Hexagon Socket Screw Plug with an ED Soft Sealing NBR Ring. Engineered specifically for high-pressure progressive distributors and centralized divider valves, this parallel-threaded blanking plug utilizes a Form E (ED) captive elastomeric seal. When torqued into place, the high-grade NBR (Nitrile Rubber) ring is compressed within a precision-machined groove. This creates an airtight, bubble-tight mechanical seal that easily handles severe structural vibration, thermal fluctuations, and heavy oil/grease pressure spikes.

Part No.	Description	G	D	L1	L2	SW1	FRI
4MN-8WD	VSTI M8x1 ED	M8x1	12	12	8	4
4MN-10WD	VSTI M10x1 ED	M10x1	14	12	8	5	5030-102
4BN-2WD	VSTI G1/8 ED	G1/8	14	12	8	5	100-244-WD

Key Features & Benefits

Advanced Form E (ED) Elastomeric Seal: The captive NBR ring prevents seal extrusion and guarantees an absolute, leak-proof barrier against fluid greases and synthetic oils.
Low-Profile Internal Hex Drive: The hexagon socket configuration allows for a completely flush installation inside crowded machine compartments and valve banks.
Vibration-Proof Mechanical Integrity: Securely dampens high-frequency pulses common in progressive automated grease pumps.
Premium NBR Compound: The integrated Nitrile seal delivers excellent resistance to industrial lubricants, petroleum-based oils, and heavy greases.

Technical Specifications

Standard Specification: DIN 908 / ISO 1179-2 (Form E)
Drive Interface: Internal Hexagon Socket (Allen Key Drive)
Sealing Material: High-Resilience NBR (Nitrile Rubber) Standard / Viton (FKM) Optional
Common Sizing Threads: M8x1, M10x1, M14x1.5, G1/8", G1/4" Parallel Threads
Material Integrity: High-tensile forged carbon steel or stainless steel options.
Surface Protection: Premium trivalent zinc or advanced zinc-nickel plating for elite corrosion defense.

Applications

Universally integrated into centralized automatic lubrication progressive blocks, hydraulic manifold blocks, grease divider valves, oil mist distribution networks, and vehicle chassis grease grids.