What is this called?

[Gremmy]

These are planer blade/knife height adjustment screws that engage with the slots in the blade/knife.

One is particularly shabby and has been bodged as I assume the original went AWOL, this is how the machine came. There isn't really enough metal left to cut the slot deeper with grinding disc.

What are they named? I can't seem to find any? It's BSF thread and a solid piece.

I can't fabricate with BSF threaded bar and braze on a washer as I don't have the tools

Anyone have any ideas?

 

[Yojevol]

What size thread is it? It looks to be 7/32" by scaling it off the rule. Does the thread need to go right up to the underside of the shoulder?
Brian

 

[TheTiddles]

I’d suggest anyone 10% competent with a metal lathe can make you some more pretty easily, probably not expensive if you find a little place
Aidan

 

[Gremmy]

What size thread is it? It looks to be 7/32" by scaling it off the rule. Does the thread need to go right up to the underside of the shoulder?
Brian

Hi Brian,

It’s 1/4” BSF - I’ve put a tap through the hole and it’s matches thread pattern.

No the thread doesn’t need to go all the way up to the shoulder.

 

[Gremmy]

I’d suggest anyone 10% competent with a metal lathe can make you some more pretty easily, probably not expensive if you find a little place
Aidan

Ahh I thought you were volunteering there Aiden!

it’s hard to find places like that where I’m not going to be charged silly money for such a small part..

 

[sunnybob]

You can be sure to get them on ebay.
look for slotted (or slot head) machine screws in 1/4" bsf

 

[Gremmy]

Hi sunnybob,

I can’t be sure to find one on eBay. Ive had a very thorough look for some days but I’m not sure what this type of screw is called hence the title name of my initial post.

It’s like a cheese head Machine screw with an extra wide shoulder below the head for fitting into the planer blade/knife slot.

If you can find me one on eBay, I’ll eat my hat

 

[hawkeyefxr]

Try this place to make the bits you want they are in Addlestone.
Holman Engineering Co. Ltd
Units 6
Kings Road Works
New Haw
Addlestone
Surrey
KT15 3BG
Tel: 01932 353555
Fax: 01932 353666
E-Mail: [email protected]
http://www.holman-engineering.co.uk/about.php
Might be best to go along personally i have always found that way you get to talk to someone that knows what he's talking about.

 

[sunnybob]

http://almabolt.com/pages/catalog/screws/self-tapping.htm Filister head. That seems to be an americanism, but it should get you to correct items

 

[Yojevol]

Hi Gremmy,
between me and my mate Bill we could make them for you. Send me a PM and we'll see what we can arrange
Brian