Flush Watertight T-Bolt Hatches

Flush T-Bolt Cover Assembly

ModelUMC-430AABS Certified

This industry standard steel enclosure features a proven strongback style design and is operated by a single T-Bolt. Its easy operation facilitates convenient use while maintaining a near flush profile.

Models: UMC-430-18A · UMC-430-18B · UMC-430-18SS · UMC-430-24A · UMC-430-24B · UMC-430-24SS
Part no.: 04210-101A · 04210-101B · 04210-101S · 01220-102A · 01220-102B · 01220-102S
Material: Steel (ASTM A36) · Painted Primer Grey
Certificates: ABS 25-0092892-2-PDA
Category: Flush Watertight T-Bolt Hatches

Built to ABS standardsQuote within 48 hWorldwide shipping

Overview

Specifications

Dimensions in inches (mm)

Model Number	Part Number	Description	Clear Opening In. (mm)	Weight Total Lbs (Kgs.)
UMC-430-18A	04210-101A	Flush 18″ T-Bolt Cover Assembly	18″ (457)	49 (22)
UMC-430-18B	04210-101B	Flush 18″ T-Bolt Cover Assembly (Galvanized)	18″ (457)	49 (22)
UMC-430-18SS	04210-101S	Flush 18″ T-Bolt Cover Assembly (Stainless Steel)	18″ (457)	49 (22)
UMC-430-24A	01220-102A	Flush 24″ T-Bolt Cover Assembly	24″ (508)	78 (35)
UMC-430-24B	01220-102B	Flush 24″ T-Bolt Cover Assembly (Galvanized)	24″ (508)	78 (35)
UMC-430-24SS	01220-102S	Flush 24″ T-Bolt Cover Assembly (Stainless Steel)	24″ (508)	78 (35)

Hardware

T-Bolt – Stainless Steel
Thread Block – Brass
Strongback – Galvanized Steel
Gasket – Nitrile Rubber
Washer – Brass
T-Bolt Gasket – Nitrile Rubber
Cotter Pin – Stainless Steel
Made from high strength 3/8” steel for better impact resistance.
No tools required, single bolt T-Bolt for secure engagement.
Stainless steel T-Bolt and Brass Thread block uses dissimilar metals to prevent galling and ensure trouble-free operation.
Nitrile rubber gaskets ensure water-tight design.
Meets ABS (American Bureau of Shipping) requirements for design and materials.

Application

Flush T-Bolt hatches are typically found along the gunnels of a barge as well as on the bow/ stern and on top of cargo compartments or tanks. They are used to access wing tanks, the rake compartment, cargo compartments etc. for venting, filling, and inspecting.