Click to enlarge338-BT
3.38" OD Conflat Flange
(8) Bolts & Washers
Tapped Hole Conflat

Fits: 3-3/8" OD CF Conflat Flanges With TAPPED Hole
8 Bolt and Washer Kit

• Del Seal Conflat Flange (CF) Equivalent
• 18-8 Stainless Bolts
• DN50CF (3.38") TAPPED Hole Bolt Kit
• Ultra-High Vacuum (UHV) Hardware

Order 12-Point Bolt Kit (338-BT-12)

338-BT Series Bolt Kit Fits:
3.375" OD Non-Rotatable Tapped CF Flanges
3.375" OD Rotatable Tapped CF Flanges

3-3/8" OD Conflat Flange (CF) Equivalents:
• 338CF, CF338, DN50CF, NW50CF, 3.375" CFF

Maximum Torque for Vacuum Tight Seals

3.38" -16.50" OD

26 ft/lbs.

Over-torqueing can result in broken bolts

Bolt & Washer Kit
Fits: 3.38" Conflat
Tapped Hole


Click to enlarge
Click to enlarge
3.38" OD Conflat Series Hardware

Anti-Seize Stick

Click to enlarge
Click to enlarge
3.38" OD Conflat
TAPPED Hole Series

3.38" OD Conflat
TAPPED Hole Series

Contact LDS Vacuum with any questions:
Phone (407)862-4643 via Fax (407)862-8723 or

LDS Vacuum Products is a 100% woman owned company and
certified Woman Owned Small Business (WOSB)
The logos and/or trademarks appearing on this page are not owned by or registered to LDS but, rather, designate products sold by LDS, and are owned and/or registered to the manufacturers or suppliers of the products.
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