Automatic flush bolt
OLDA 28 HZA – with extended bolt

note. This product was previously called 28 HZ

Function:

Automatic, single action flush bolt for non-spring-loaded bolting of passive door leaf in double doors.

Features:

These versions of OLDA 28 HZA has bolts extended to protrude; 8, 15, 20 or 30 mm. This makes it possible to use them, also when there is a large gap between the door leaf and frame or sill, or when a sill is not fitted. They are also intended for integration with suitable automatic drop seals etc.

OLDA 28 HZA is bolted and unbolted automatically and has bolt diameter 10 mm, backset 12 mm and forend width 25 mm.

Same dimensions as manual flush bolt OLDA 30 HZM.

Manufactured in steel. Coating: electrozinc plating.

Usage:

To be recessed into wooden doors, both up and/or down in the edge of passive door leaves.

Installation:

OLDA 28 HZA is fitted recessed in the edge of the door, either flush, with cut-out or without cut-out for the forend.

Fixed with four screws.

OLDA type 1 automatic flush bolt is fitted upper right and lower left in passive door leaf.

OLDA type 2 automatic flush bolt is fitted lower right and upper left in passive door leaf.

Accessories:

Lock plate LP 10.

Strike plate SP 10.

Specification:

  • Automatic, single action and non-spring-loaded bolt function
  • Extended bolt:
    • diameter: 10 mm
    • bolt extension / projection:
      • +8 mm / 20 mm
      • +15 mm / 27 mm
      • +20 mm / 32 mm
      • +30 mm / 42 mm
    • adjustability: -0 / +13 mm
  • Round electrozinc plated forend in steel
  • Product:
    • width: 25 mm
    • height: 168 mm + bolt extension
    • depth: 20 mm
    • forend thickness: 2 mm
  • Backset including forend: 12 mm
  • Installation: in door leaf edge
    • fixed with electrozinc plated screws, countersunk (rec. dim. 3,5×40 mm), 4 pcs.
  • Accessories: Lock plate LP 10
    • fastened with electrozinc plated screws, countersunk (rec. dim. 3,5×16 mm), 4 pcs.
  • Strike plate SP 10.
    • fastened with electrozinc plated nails (rec. dim. 1×15 mm), 3 pcs.
  • Material: steel
  • Coating: electrozinc plating

Product ID:

product id [2022] – OLDA 28 HZA with extended bolt:
  • type 1:
    • +8 mm: 10-128-1003-11xx
    • +15 mm: 10-128-1001-11xx
    • +20 mm: 10-128-1004-11xx
    • +30 mm: 10-128-1002-11xx
  • type 2:
    • +8 mm: 10-128-2003-11xx
    • +15 mm: 10-128-2001-11xx
    • +20 mm: 10-128-2004-11xx
    • +30 mm: 10-128-2002-11xx

note. Accessories and screws for installation are ordered separately, or as a part of different product KITs.

article number [2021] – OLDA 28 HZ with extended bolt:
  • type 1:
    • retail packaging 1 pce. – KIT including accessories and screws/nails:
      • 47101428-1/+8
      • 47101428-1/+15
      • 47101428-1/+20
      • 47101428-1/+30
    • bulk packaging 30 pcs./pack. – KIT including accessories and screws/nails:
      • 28HZ-1/+8/BULK
      • 28HZ-1/+15/BULK
      • 28HZ-1/+20/BULK
      • 28HZ-1/+30/BULK
    • bulk packaging 30 pcs./pack. – excluding accessories and screws/nails:
      • 28HZ-1/+8/BU/NA
      • 28HZ-1/+15/BU/NA
      • 28HZ-1/+20/BU/NA
      • 28HZ-1/+30/BU/NA
  • type 2:
    • retail packaging 1 pce. – KIT including accessories and screws/nails:
      • 47101428-2/+8
      • 47101428-2/+15
      • 47101428-2/+20
      • 47101428-2/+30
    • bulk packaging 30 pcs./pack. – KIT including accessories and screws/nails:
      • 28HZ-2/+8/BULK
      • 28HZ-2/+15/BULK
      • 28HZ-2/+20/BULK
      • 28HZ-2/+30/BULK
    • bulk packaging 30 pcs./pack. – excluding accessories and screws/nails:
      • 28HZ-2/+8/BU/NA
      • 28HZ-2/+15/BU/NA
      • 28HZ-2/+20/BU/NA
      • 28HZ-2/+30/BU/NA

Alternative versions:

OLDA 28 HZA with standard bolt

Related products:

OLDA 30 HZM with standard bolt
– manual flush bolt, also with forend width 25 mm

OLDA 30 HZM with extended bolt
– manual flush bolt, also with forend width 25 mm

Complementary products:

OLDA accessories for flush bolts

OLDA FS 12 and 15
– stainless-steel dust-excluding floor sockets for screw fitting.

OLDA FS R12 and R15
– stainless-steel dust-excluding round floor sockets especially designed for gluing.

Also see:

Type of OLDA flush bolt – guide (pdf)

OLDA Flush bolt guide (pdf)

OLDA Fittings school

Accessories guide OLDA – coming soon

Documents:

product documents

product leaflet
pdf: 28 HZA type1 +8  / 28 HZA type2 +8 
     28 HZA type1 +15 / 28 HZA type2 +15 
     28 HZA type1 +20 / 28 HZA type2 +20 
     28 HZA type1 +30 / 28 HZA type2 +30

dimensions
pdf: 28 HZA type1 +8    /   28 HZA type2 +8
     28 HZA type1 +15   /   28 HZA type2 +15
     28 HZA type1 +20   /   28 HZA type2 +20
     28 HZA type1 +30   /   28 HZA type2 +30
product views - 2D

pdf: 28 HZA type1 +8    /   28 HZA type2 +8
     28 HZA type1 +15   /   28 HZA type2 +15
     28 HZA type1 +20   /   28 HZA type2 +20
     28 HZA type1 +30   /   28 HZA type2 +30

dxf: 28 HZA type1 +8    /   28 HZA type2 +8
     28 HZA type1 +15   /   28 HZA type2 +15
     28 HZA type1 +20   /   28 HZA type2 +20
     28 HZA type1 +30   /   28 HZA type2 +30

dwg: 28 HZA type1 +8   /   28 HZA type2 +8
     28 HZA type1 +15  /   28 HZA type2 +15
     28 HZA type1 +20  /   28 HZA type2 +20
     28 HZA type1 +30  /   28 HZA type2 +30
product models - 3D

stp: 28 HZA type1 +8   /   28 HZA type2 +8
     28 HZA type1 +15  /   28 HZA type2 +15
     28 HZA type1 +20  /   28 HZA type2 +20
     28 HZA type1 +30  /   28 HZA type2 +30

pdf 3D: 28 HZA type1 +8   /   28 HZA type2 +8
        28 HZA type1 +15  /   28 HZA type2 +15
        28 HZA type1 +20  /   28 HZA type2 +20
        28 HZA type1 +30  /   28 HZA type2 +30
SKU: 28 HZ + Category: