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Bilco RPRS7-1B

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Bilco RPRS7-1B Replacement Zinc Plated - Bilco Shop #KTSLAM-TB - Chromate Sealed Lock Assembly 4# for 3" cover - 6-5/8" Shaft

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Bilco RPRS7-1B Replacement Zinc Plated - Bilco Shop #KTSLAM-TB - Chromate Sealed Lock Assembly 4# for 3" cover - 6-5/8" Shaft
Main ImageVideo Review Bilco RPRS7-1B Replacement Zinc Plated - Chromate Sealed Lock Assembly
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Price: $156.97 USD
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Naples, FL Warehouse Qty: 3
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Product Description:
RPRS7-1B Replacement Zinc Plated - Chromate Sealed Lock Assembly 4# - 6-5/8" Shaft
  • Non-stainless steel Replacement door latch for roof hatches.
  • Bolt Type and Quantity for RPRS7:
    • 7-OF THE SD3-Y SELF TAPPERS
    • 1-OF THE SD3-1-Y LOW PROFILE SELF TAPPERS
    • Shaft Length: 6-5/8"
    • For 3" Cover



Bilco Lock Assembly List
Formal Bilco
Part #
Bilco Shop
Part #
Description Cover Shaft Length
KTSLAM Zinc Plated Lock Assy 1" Cover 4-5/8" Shaft
KTSLAM/S Stainless Steel Lock Assy 1" Cover 4-5/8" Shaft
KTSLAM-T Zinc Plated Lock Assy 2" Cover 5-5/8" Shaft
KTSLAMTS Stainless Steel Lock Assy 2" Cover 5-5/8" Shaft
KTSLAM-TB Zinc Plated Lock Assy 3" Cover 6-5/8" Shaft
KTSLAMSTB Stainless Steel Lock Assy 3" Cover 6-5/8" Shaft


Questions and Answers
Q: What's the name for the part that goes between the hatch lock
A: Is it possible that you are referring to the strike plate as seen here?

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Q: How can the length of the shaft be determined without disassembling the existing shaft or can a replacement with a 6 5/8" shaft be purchased and cut down? Looks like I need a Bilco RPRS7-1B Replacement Zinc Plated -
A: Without removing the 2 - screws from the exterior handle and removing the pull and measuring the spindle length, it would be guesswork - although the RPRS7-1B is the thickest version available and used on insulated roof hatch lids. If your lid is not insulated (noticeably thick), you would not need the RPRS7-1B. Having said this - you can order the RPRS7-1B and indeed cut the length of the spindle is you elected to, or simply not and the amount of projection of the shaft on the interior side will likely not be a concern (simply stated, leave it long).
Q: From centre to centre I have the bolt holes lining up at 5” and 2” with the case being 1-5/8” deep. The shaft is 4-1/2”. Is this the right product?
A: The footprint of the body is indeed 5 inch center to center lengthwise and then 2 inch center to center depth-wise however if you need a 4 and 5/8 length shaft the proper unit is going to be the Bilco RPRS7 Replacement Zinc Plated - Bilco Shop #KTSLAM - Chromate Sealed Lock Assembly 4# for 1" cover - 4-5/8" Shaft as seen here:

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Q: i have a 2 inch by 5 inch center to center which shaft and handle do i need.
A: The 5" Center to Center is a much older footprint and no longer available. I suggest you purchase the RPRS7 version you require and simply elongate the mounting holes in the mounting flanges of the lock body. I have suggested this "countless" times prior with no trouble.
Q: is this a replacment latch for an s20 roof hatch
A: No, the correct replacement latch for the Bilco S-20 is the Bilco KTSLAM Replacement Zinc Plated - RPRS7 - Chromate Sealed Lock Assembly 4# for 1" Cover - 4-5/8" Shaft as seen here:

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Q: international shipping
A: We ship internationally everyday.
Q: what is the difference between the 2" and 3" Cover?
A: The thickness of the cover is the difference and each requires a different length spindle for the Lock Assembly. 2" covers require the RPRS7-1 as seen here:

Click Here

and the 3" covers require the RPRS7-1B.

Q: Country of origin?
A: The Country of Origin is The United States of America.
Q: Hello, Does Bilco RPRS7-1B include the exterior handle? Thank you,
A: Yes, the exterior handle is included with the Bilco RPRS7-1B Replacement Zinc Plated - Bilco Shop #KTSLAM-TB - Chromate Sealed Lock Assembly 4# for 3" cover - 6-5/8" Shaft
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