Name: 5/16″ × 1″ Hex-Head Screws for Big Blue Filter Housing Brackets — Housing Mount, 4-Pack, SKU: SCREW1-516-4 - MyAquaFilter®
SKU: SCREW1-516-4
Price: 2.40 USD
Availability: InStock

5/16″ Hex Head Screws (1″ Length) for Big Blue Filter Bracket – Housing Mount (4-Pack), SKU# SCREW1-516-4

5/16″ × 1″ Hex-Head Screws for Big Blue Filter Housing Brackets — Housing Mount, 4-Pack, SKU: SCREW1-516-4

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Description

Big Blue housing-mount hardware

5/16″ × 1″ hex-head screws for attaching Big Blue housing heads to metal brackets

This 4-pack of steel mounting screws is designed to secure compatible 10″ × 4.5″ or 20″ × 4.5″ Big Blue housing heads to single-, dual-, or triple-stage metal brackets. The 1″ length is intended to provide secure bracket-to-housing engagement without unnecessary over-penetration.

5/16″ diameterBig Blue housing-mount size

1″ lengthBracket-to-housing application

Hex headWrench or socket installation

4 screwsOne replacement hardware pack

Product purpose

Fasten compatible Big Blue housing heads to their mounting bracket

Each screw passes through a compatible metal bracket and threads into the mounting point on the housing head. Proper installation helps keep the housing securely attached, aligned, and supported during operation and cartridge service.

Primary use

Bracket-to-Housing Connection

Designed to attach a compatible Big Blue housing head to a single-, dual-, or triple-stage metal bracket.

Not intended for

Wall-Mounting the Bracket

These 1″ screws are not the long structural fasteners used to secure the bracket to wood studs, masonry, or other wall surfaces.

Key benefits

Compact replacement hardware for Big Blue bracket assemblies

5/16

5/16″ Diameter
Matches compatible Big Blue bracket and housing-head mounting points.

1″

One-Inch Length
Provides secure engagement without excessive depth in compatible housing heads.

HEX

Hex-Head Design
Installs with a compatible wrench, socket, or hex driver.

Steel Construction
Provides rigid mechanical fastening for compatible indoor bracket assemblies.

Big Blue Application
For compatible 10″ and 20″ Big Blue housing heads and brackets.

Four-Screw Pack
Convenient quantity for replacement, repair, or keeping spare hardware available.

What is included

Four steel hex-head screws

✓4 × 5/16″ diameter, 1″ long mounting screws
✓Hex-head design
✓Steel construction
✓Brackets, housings, wall screws, anchors, washers, and installation tools are not included

Specifications

Confirmed product details

Product type	Big Blue housing-to-bracket mounting screws
Nominal diameter	5/16″
Length	1″
Head style	Hex head
Material	Steel
Primary application	Attaching compatible Big Blue housing heads to metal mounting brackets
Housing compatibility	Compatible 10″ × 4.5″ and 20″ × 4.5″ Big Blue housing heads
Bracket compatibility	Compatible single-, dual-, and triple-stage Big Blue brackets
Quantity included	4 screws
SKU	SCREW1-516-4
Listed shipping dimensions	1 × 1 × 1 in
Listed shipping weight	Approximately 2 oz

Installation guidance

✓Align the housing-head mounting holes with the bracket openings
✓Start each screw by hand to avoid cross-threading
✓Use a compatible wrench, socket, or hex driver
✓Tighten each screw gradually and evenly
✓Stop once the housing head is secure against the bracket
✓Do not overtighten, as excessive force may damage the housing threads or bracket

Compatibility

For compatible Big Blue bracket assemblies

Single Big Blue Brackets

Use with compatible single-housing brackets such as BR-1-BB and BR-1-BB-8S.

Dual Big Blue Brackets

Use with compatible dual-housing brackets such as BR-2-BB.

Triple Big Blue Brackets

Use with compatible triple-housing brackets such as BR-3-BB.

10″ and 20″ Big Blue Housings

Compatible only when the housing-head mounting threads and bracket holes match the 5/16″ screw size.

Often used with

Related Big Blue mounting components

BR1

Single Big Blue Bracket

Supports one compatible 10″ or 20″ Big Blue housing.

View single bracket →

BR2

Dual Big Blue Bracket

Supports two compatible Big Blue housing heads.

View dual bracket →

BR3

Triple Big Blue Bracket

Supports three compatible Big Blue housing heads.

View triple bracket →

WALL

2″ Wood-Mount Screws

Use the longer 1/4″ × 2″ screws for securing a compatible bracket to structural wood.

View wall-mount screws →

Before purchase

Good to know

Not wall-mount screws
These 1″ screws attach the housing head to the bracket; they are not intended to anchor the bracket to a wall.

Confirm thread size
The housing-head mounting points must accept 5/16″ screws.

Do not overtighten
Excessive torque can strip or crack the housing-head mounting points.

Four screws may not complete every build
The number of screws required depends on the bracket design and number of housings.

Not for slim housings
These screws are listed for Big Blue housing-head mounting and may not fit standard slim housing assemblies.

Finish and thread pitch are not stated
The current listing does not identify the screw coating, steel grade, thread pitch, or exact hex-drive size.

This product includes four housing-mount screws only. Brackets, filter housings, wall screws, anchors, washers, and tools are not included. Verify the bracket-hole size, housing-head thread size, screw quantity, and installation requirements before use.

Not sure whether SCREW1-516-4 fits your housing?
Send the bracket model, housing model, mounting-hole measurements, and a photo of the original hardware before ordering.

Ask a Water Filter Specialist