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PRIME-LINE Roller: Roller, 5 7/16 in Overall Ht, 5 7/16 in Overall Lg, 3 13/16 in Overall Wd - Screen Door Hardware
PRIME-LINEScreen Door Hardware

PRIME-LINE Roller: Roller, 5 7/16 in Overall Ht, 5 7/16 in Overall Lg, 3 13/16 in Overall Wd

The PRIME-LINE Roller (MPN B 521) is a screen door hardware roller in gray with an unfinished finish, measuring 5 7/16 in overall height, 5 7/16 in overall length, and 3 13/16 in overall width, with a quantity of 1 PR.

SKU 3G-OTH-532539

Brand
PRIME-LINE
Item
Roller: Roller, 5 7/16 in Overall Ht, 5 7/16 in Overall Lg, 3 13/16 in Overall Wd
Category
Screen Door Hardware
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Technical Specifications

PRIME-LINE
Manufacturer Part Number
B 521
Overall Lg
5 7/16 in
PR
1
Color
Gray
Finish
Unfinished
Overall Ht
5 7/16 in
Overall Wd
3 13/16 in
Product Type
Roller
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Technical Documents

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PRIME-LINE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The PRIME-LINE Roller (MPN B 521) is a screen door hardware roller in gray with an unfinished finish, measuring 5 7/16 in overall height, 5 7/16 in overall length, and 3 13/16 in overall width, with a quantity of 1 PR.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the PRIME-LINE B 521 roller used for?

The PRIME-LINE B 521 roller is used as a replacement part for sliding screen doors. It helps the door glide smoothly along its track. This gray, unfinished roller measures 5 7/16 in overall height, 5 7/16 in overall length, and 3 13/16 in overall width, and is sold as a pair (1 PR).

What are the specifications of the PRIME-LINE B 521 roller?

The PRIME-LINE B 521 roller has an overall height of 5 7/16 in, overall length of 5 7/16 in, and overall width of 3 13/16 in. It comes in gray with an unfinished finish, is sold as 1 PR, and is manufactured by PRIME-LINE under MPN B 521.

Where to buy the PRIME-LINE B 521 roller worldwide?

3G Electric supplies the PRIME-LINE B 521 roller to customers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this screen door hardware roller to your location. Contact us for availability and lead time.

How to install the PRIME-LINE B 521 roller?

To install the PRIME-LINE B 521 roller, first remove the old roller from the screen door frame. Align the new roller in the same position, ensuring the mounting holes match. Secure it with the original screws, then test the door glide. Always follow the manufacturer's instructions for best results.

Used in

Common applications for PRIME-LINE
Residential garage door repair — PRIME-LINE keyed T-handles (GD 52169) for replacing broken lock handles on sectional doors.
Light-commercial door maintenance — PRIME-LINE spring cables (GD 52102) for torsion spring systems on warehouse overhead doors.
Sliding door security — PRIME-LINE slide locks (GD 52118) for bolting sliding garage doors in industrial storage facilities.
Garage door safety — PRIME-LINE stop balls (GD 52286) as travel limit stops on automatic door openers.
Extension spring door systems — PRIME-LINE extension cables (GD 52263) for replacing worn cables on residential garage doors.
Cabinet and locker hardware — PRIME-LINE keyed L-handles (GD 52123) for securing storage cabinets in maintenance shops.

PRIME-LINE Products

3G Electric supplies PRIME-LINE screen door hardware. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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PRIME-LINE Keeper: Keeper, 1 5/16 in Overall Ht, 5/16 in Overall Lg, 1/2 in Overall Wd, Silver, 1 PR (MPN A 203). Key specifications — Brand: PRIME-LINE; Finish: Zinc-Plated; Product Type: Keeper; Color: Silver.
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PRIME-LINE Latch and Pull: Sliding Handle and Latch Kit, 4 1/4 in Overall Ht, 4 1/4 in Overall Lg (MPN A 220). Key specifications — Brand: PRIME-LINE; Finish: Unfinished; Product Type: Sliding Handle and Latch Kit; Color: Black.
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PRIME-LINE Latch and Pull: Sliding Handle and Latch Kit, 4 1/4 in Overall Ht, 4 1/4 in Overall Lg (MPN A 220). Key specifications — Brand: PRIME-LINE; Finish: Unfinished; Product Type: Sliding Handle and Latch Kit; Color: Black.
PRIME-LINE Tension Spring Roller: Tension Spring Roller, 5 23/64 in Overall Ht, Unfinished, 1 PR (MPN B 541). Key specifications — Brand: PRIME-LINE; Finish: Unfinished; Product Type: Tension Spring Roller; Color: Gray.
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PRIME-LINE Tension Spring Roller: Tension Spring Roller, 5 23/64 in Overall Ht, Unfinished, 1 PR (MPN B 541). Key specifications — Brand: PRIME-LINE; Finish: Unfinished; Product Type: Tension Spring Roller; Color: Gray.
PRIME-LINE Roller Assembly: Roller Assembly, 6 13/32 in Overall Ht, 6 13/32 in Overall Lg, 1 PR (MPN B 695). Key specifications — Brand: PRIME-LINE; Finish: Unfinished; Product Type: Roller Assembly; Color: White.
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PRIME-LINE Roller Assembly: Roller Assembly, 6 13/32 in Overall Ht, 6 13/32 in Overall Lg, 1 PR (MPN B 695). Key specifications — Brand: PRIME-LINE; Finish: Unfinished; Product Type: Roller Assembly; Color: White.
PRIME-LINE Roller Assembly: Roller Assembly, 6 13/32 in Overall Ht, 6 13/32 in Overall Lg, 1 PR (MPN B 701). Key specifications — Brand: PRIME-LINE; Finish: Unfinished; Product Type: Roller Assembly; Color: Bronze.
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PRIME-LINE Roller Assembly: Roller Assembly, 6 13/32 in Overall Ht, 6 13/32 in Overall Lg, 1 PR (MPN B 701). Key specifications — Brand: PRIME-LINE; Finish: Unfinished; Product Type: Roller Assembly; Color: Bronze.
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PRIME-LINE Roller Assembly: Roller Assembly, 5 13/32 in Overall Ht, 5 13/32 in Overall Lg, 1 PR (MPN B 617). Key specifications — Brand: PRIME-LINE; Finish: Unfinished; Product Type: Roller Assembly; Color: Gray.