17# 18# 19# 20# DOT Clamp for PCB Fixture

Dot Holddowns for Wave Solder Pallet Accessories, hold down clamps
Features
1. Position PCB substrate to avoid from floating and lifting under soldering.
2. Hight temperature resistent.
3. Easily handle
Application
1)Designed specifically for use in wave solder operations
2)Mostly made from molded plastic part, spring, screws and sleeve.
3)Working temperature: 200degree, max 280degree (10~20s).
4)The action is to press PCB board to protect it from floating and lifting under wave solder process so as to create excellent solder tin.
Function
Used to be positioned PCB substrate in wave solder pallets, fixtures and stencils to protect PCB substrate from floating and lifting.
Material:
High temperature polymer
TEMPERATURE RATING:
(>200° C)
HARDWARE:
Fixing pre-assembled with,
Sleeve, Carbon Steel Spring & screw.
Countersunk screw supplied for attaching fixing to carrier.
Classification:
Common used length screws is  25mm, 31mm, 35mm, 38mm, 42mm, 44mm(Notes: This screw length is not included screw head length and the screw head length is about 2mm). Our common used length screws

( 25mm, 31mm, 35mm, 38mm, 42mm, 44mm) is correspond to around total length of 33mm, 39mm, 43mm, 46mm, 52mm(including the black head and the head of screws)